"We'll stay here," says Brown. "You and Sergeant Nolan go up and get him to come out."

Harris nods, then walks with Roger Nolan to the front of the red brick building. The Madison Avenue address is a downtown group home for those charged with delinquency, which in Baltimore means anything up to and including armed robbery and manslaughter. Inside that home is Dennis Wahls's younger brother, on whose person is a wrist.w.a.tch that belonged to Karen Smith.

"How do you know he still has the watch?" asks Brown as he watches Nolan and the detail officer make their way up the front steps.

"I saw him yesterday and he had it then," says Wahls.

Thank G.o.d, thinks Brown. Thank G.o.d they're so stupid. If they were smart, if they regarded murder as a secret and heinous act, if they told no one, if they got rid of the clothing and the weapon and the possessions taken from the victim, if they refused to listen to bulls.h.i.t in the interrogation rooms, what the h.e.l.l would a detective do?

"This is giving me a headache," says Wahls.

Brown nods.

"I'm going to need a lift home after we get finished with this."

A lift home. This kid actually thinks he's going to go home and sleep it off, as if it were some kind of hangover. O.B. McCarter, another detail officer from the Southwest, bites his tongue in the driver's seat, trying hard not to laugh.

"You think you all could get me a lift home?"

"We'll see what happens," says Brown.

What happens is this: The younger brother of Dennis Wahls, a fourteen-year-old urchin with twice the sense of his sibling, comes out of the group home and is escorted to the side of the Chevrolet. He looks into the car, looks at his brother, looks at Eddie Brown and manages to a.s.sess the situation for what it really is. He nods.

"Hey," says Dennis Wahls.

"Hey," says his brother.

"I told them about the watch-"

"What watch?"

"Hey," Brown interrupts. "Your a.s.s is going to be in this if you don't listen to your brother."

"Man, c'mon," says Dennis Wahls. "You got to give it up. They gonna let me go if you give it to him. If you don't, they gonna put a murder charge on me."

"Hmm," says the kid, obviously wondering how this can be. If they don't get the evidence, they charge you, but if they get the evidence, you go free. Yeah. Right.

"Go on," says Roger Nolan, standing beside the car.

The boy looks at his brother. Dennis Wahls nods and the young boy races back into the red brick building, returning three minutes later with a woman's timepiece on a black leather band. The boy tries to hand the watch to his brother, but Brown interjects his own hand. The boy takes a step away from the car.

"See you soon, yo," says Dennis Wahls.

The boy nods again.

They proceed to Reservoir Hill, where the two cars pull to the curb outside the Section 8 housing on Lennox Avenue. Again Brown and Wahls wait in the Cavalier; this time, Nolan pays a visit to Wahls's young girlfriend, who received a gift of Karen Smith's gold necklace.

In the driver's seat, McCarter plays with the radio. Eddie Brown, still in the back seat with his prisoner, watches Nolan bulls.h.i.tting with the girlfriend's mother in the project parking lot. When Nolan gets wound up, he can talk your ear off.

"C'mon, Roger," mutters Brown. "What the f.u.c.k are you doing there anyway?"

A minute or two more and the girl returns from her apartment with the jewelry, walking across the lot to Nolan waving nervously at Wahls, who is peering out the rear pa.s.senger window.

"Man, I wish she hadn't seen me like this."

The detective grunts.

"Her momma's gonna be upset with me now."

McCarter pushes the radio b.u.t.tons until rock 'n' roll spills out in a crackling AM static: the Bobby Fuller Four from about a dozen years back. The detail officer listens to the song for a moment; suddenly, he's dying in the front seat, trying hard not to laugh aloud.

"Oh man," says McCarter.

"Breakin' rocks in the hot sun ..." ..."

McCarter starts snapping two fingers, mugging for Brown and Harris, who is standing at the driver's window.

"... I fought the law and the law won I fought the law and the law won."

Brown steals a look at Wahls, but the kid is oblivious.

"Robbin' people with a six-gun ..." ..."

McCarter keeps time on the steering wheel.

"... I fought the law and the law won I fought the law and the law won."

"Can you believe it?" says McCarter.

"Believe what?" asks Wahls.

McCarter shakes his head. On the night when he has greatest need of a functioning mind, Dennis Wahls is suddenly struck deaf, dumb and blind. The radio could be playing back his own confession and he wouldn't notice.

Which is not to say that Wahls, at the age of nineteen, has a deep reservoir of intelligence from which to draw. First of all, he let some other brain-dead talk him into killing a woman cabbie for a few dollars and some jewelry, and then he settled for the jewelry, letting his partner keep the cash. Next, he gave away the jewelry and began bragging about being right there when the woman was pulled into the woods and beaten to death. He didn't kill her, no sir. He watched.

The first few people within earshot didn't believe it; either that or they didn't much care. But eventually some young thing that Dennis Wahls tried hard to impress went to school and told a friend, who told someone else, who finally decided that maybe some sort of authority figure ought to hear about it. And when line 2100 lit up in the homicide unit, Rick James was there to take the call.

"I did one thing right in this whole investigation," James, the primary for the Smith murder, will later declare. "I picked up the phone."

In truth, he did a lot more than that. With the detail officers to help him, James ran down every lead that came in, checking and rechecking the stories provided by Karen Smith's coworkers, boyfriends and relatives. He spent days going over the cab company's service logs, looking for fares or locations that seemed out of the ordinary. He sat at his desk for hours, listening to tapes of the cab dispatcher's calls, trying to pick up a location where Karen Smith may have gone before she disappeared into the woods of Northwest Baltimore. He checked every recent robbery or a.s.sault report involving a taxi driver anywhere in the city or county, as well as the robbery reports from anywhere close to the Northwest. When he found out that one of the victim's boyfriends had a cocaine habit, he went at him hard in a series of interviews. The alibi was checked. The boyfriend's acquaintances were all interviewed. Then they brought the man downtown and went at him again: Things weren't so good between you two, right? She made a lot of money, didn't she? You spend a lot of money, don't you?

Even Donald Worden, as harsh a judge of the younger detectives as any, was impressed with his partner's effort.

"James is learning," Worden said, watching the case from a distance, "what it means to be a detective."

Rick James did everything conceivable to solve the case, yet when the phone finally rang, the two binders of office reports from the cabbie killing contained not a single mention of Dennis Frank Wahls. Nor was Clinton Butler, the twenty-two-year-old wonder who conceived the slaying and struck the fatal blow, a name in the file. There was nothing new to that kind of twist, no lesson to be learned by the detective. It was merely a textbook example of Rule Five in the homicide lexicon, which states: It's good to be good; it's better to be lucky.

James was actually on his way to the airport, waiting for a morning flight and a week's vacation, when detectives finally located Wahls and brought him downtown. Wahls gave up the murder in little more than an hour of interrogation, during which Eddie Brown and two detail officers offered him the most obvious out. You didn't hit her; Clinton did, they a.s.sured him, and Wahls went for the whole apple. No sir, he didn't even want to do the robbery. That was Clinton's idea, and Clinton called him names when he didn't initially agree. He didn't even get any of the money; Clinton took that, arguing that he was the one who had done all the work, leaving Wahls only the jewelry. After she fainted from fear, it was Clinton who dragged the cabbie out of her taxi and down the wooded path, Clinton who found the tree branch, Clinton who challenged him to do it, then teased him when he did not. So it was Clinton Butler who finally smashed the wooden limb against the woman's head.

In the end, the only thing that Wahls would admit was that it was he, not Clinton, who pulled off the woman's pants and attempted oral s.e.x with their unconscious victim. Clinton was h.o.m.os.e.xual, Wahls a.s.sured the detectives. He didn't want none of that.

When Wahls had signed and initialed the statement, the detectives asked about the jewelry. We believe what you're telling us, Brown said, but we need a show of good faith. Something that proves you're telling us the truth. And Wahls nodded his understanding, suddenly confident that the return of the dead woman's watch and necklace would buy his freedom.

Solved by chance rather than perseverance, the Karen Smith case was as much a message for Tom Pellegrini as anything else. Just as he was replaying the Latonya Wallace murder in his mind like a tape loop, James had lost himself in the details of the cabbie slaying. And to what end? Sweat and logic can solve a case in those precious days that follow a murder, but after that, who the h.e.l.l knows? Sometimes a late phone call can break a case. Sometimes a fresh connection to another crime-a ballistics match or print hit-can change the outcome. More often, however, a case that stays open a month will stay open forever. Of the six female slayings that provoked the department bra.s.s to create the Northwest detail, the Karen Smith case would be only one of two to end in arrest and the only case to reach trial. By the end of March, the detail officers in the other five cases had returned to their districts; the case files were back in the cabinets-a little thicker than before, perhaps, but no better for all the effort.

But Pellegrini has no time for any lesson offered by the Northwest cases. He spends the night of Dennis Wahls's confession handling shooting calls and rereading portions of the Latonya Wallace office reports. In fact, he is out on a call when they bring Wahls back into the homicide unit and begin typing the warrant for Clinton Butler. And he is long gone in the early hours of the morning when Eddie Brown, flush with the victory, sends the recovered jewelry down to the ECU and offers up for bid the opportunity to tell Dennis Wahls that he, too, will be charged with first-degree murder.

"Hey," says Brown, standing at the interrogation room door, "someone's got to go in there and tell this fool he ain't leaving. He's still asking about a ride home."

"Let me do it," says McCarter, smiling.

"Go 'head."

McCarter walks into the large interrogation room and closes the door. From the wire mesh window, the scene becomes a perfect pantomime: McCarter's mouth moving, his hands on his hips. Wahls, shaking his head, crying, pleading. McCarter waving one arm in the air, reaching for the door handle, smiling, turning back into the hallway.

"Ignorant motherf.u.c.ker," he says, closing the door behind him.

TUESDAY, APRIL 5.

Two months after the murder of Latonya Wallace, only Tom Pellegrini remains.

Harry Edgerton, the secondary investigator, left to help Bertina Silver pursue another interrogation of his best suspect in the January murder of Brenda Thompson, the woman found stabbed in the car on Garrison Boulevard. Eddie Brown was swallowed up by the sudden break in the Karen Smith case and has now moved on to fresh murders. And Jay Landsman, as much an investigator on the Latonya Wallace murder as any of them, he's gone too. No one expected otherwise: Landsman has a squad to run, and come the next three weeks of nightwork, all of his detectives are working a fresh spate of murders.

The detail men are also gone, back to the tactical section or to the district commanders who loaned them to homicide for the murder of a little girl. First the tac units were sent down, then the youth section detectives, then the Central men, and then, finally, the two plainclothesmen on loan from Southern District operations. Slowly, inexorably, the Latonya Wallace investigation has become the exclusive preserve of one detective.

Beached by the ebbing tide, Pellegrini sits at his desk in the annex office, surrounded by three cardboard crates of office reports and photographs, lab examinations and witness statements. Against the wall behind his desk is the bulletin board that the men on the detail created but never found the time to hang on a wall. Pinned to its center is the best and most recent photograph of the child. On the left is Edgerton's rooftop diagram of Newington Avenue. On the right, a map of the Reservoir Hill area and a series of aerial photographs taken from the police helicopter.

On this dayshift as on two dozen others, Pellegrini moves slowly through one of the bound case folders, reading reports that are weeks old, searching for any loose fragment of information that he failed to digest the first time around. Some of the reports are his own, others are signed by Edgerton or Eddie Brown, Landsman or the detail men. That's the trouble with the red-ball treatment, Pellegrini tells himself, scanning one typewritten page after another. By virtue of their importance, red b.a.l.l.s have the potential to become David O. Selznick productions, four-star departmental cl.u.s.terf.u.c.ks beyond the control of any single investigator. From almost the moment the body was found, the Latonya Wallace case became the property of the entire police department, until door-to-door canva.s.ses were being done by patrolmen and witness statements were being taken by detail officers with no more than a few days' experience in death investigation. Knowledge of the case file was soon scattered among two dozen people.

On one level, Pellegrini accepts the logic of unlimited manpower. In the weeks after the little girl's murder, the red-ball express made it possible to cover the longest piece of ground in the shortest stretch of time. By the end of February, the men on the detail had twice canva.s.sed a three-block radius from the crime scene, had interviewed nearly two hundred people, had executed warrants for three addresses and had done walkthrough consent searches in every rowhouse on the north side of Newington Avenue. But now, the paperwork from that ma.s.sive campaign has congealed on Pellegrini's desk. The witness statements alone fill one file, while information about the Fish Man-still the best suspect-is relegated to a manila folder all its own.

Leaning forward in his chair, Pellegrini looks through the scene photos for what must be the three hundredth time. The same child stares out across the rainy pavement with that same lost look. Her arm is still extended in that same reaching motion, palm open, fingers slightly curled.

For Tom Pellegrini, the 3-by-5 color shots no longer produce anything that remotely resembles an emotion. In fact, he concedes to himself, they never really did. In some strange way that only a homicide detective can understand, Pellegrini psychologically stepped away from his victim at the very outset. It was not a conscious decision; it was more the absence of a decision. In some elemental, almost preordained way, the switch in his mind was thrown when he walked into that yard behind Newington Avenue.

The detachment came naturally enough, and Pellegrini still has no reason to question it. If he did, the easy answer would be that a detective can only function properly by accepting the most appalling tragedies on a clinical level. On that basis, the sight of a young child sprawled across the pavement-her torso gutted, her neck contorted-becomes, after an initial moment of shock, a matter of evidence. A good investigator, leaning over a fresh obscenity, doesn't waste time and effort battering himself with theological questions about the nature of evil and man's inhumanity to man. He wonders instead whether the jagged wound pattern is the result of a serrated blade, or whether the discoloration on the underside of the leg is indeed an indication of lividity.

On the surface, that professional ethos is part of what keeps any detective from the horror, but Pellegrini knows there is something more to it, something that has to do with the act of bearing witness. After all, he never knew the little girl. He never knew her family. Most important, perhaps, he never really felt their loss. On the day the body was found, Pellegrini left the crime scene to go directly to the ME's offices, where the autopsy of a little girl demanded the most clinical kind of mind-set. It was Edgerton who told the mother, who watched the family suddenly dissolve in anguish, who represented the homicide unit at the funeral. Since then, Pellegrini had spoken to members of the Wallace family on occasion, but only about details. At those moments, the survivors were both helpful and numb, their pain no longer apparent to a visiting detective. That Pellegrini had not borne witness to their grief somehow kept him from truly seeing the photographs in front of him.

And maybe, Pellegrini concedes, maybe there was distance because he was white and the little girl was black. It made the slaying no less a crime, Pellegrini knew, but it was in some way a crime of the city, of Reservoir Hill's ghetto, of a world to which he had no ties. Pellegrini could try to make himself believe that Latonya Wallace could have been his little girl, or Landsman's, or McLarney's, but the distinctions of race and cla.s.s were always there, unspoken but acknowledged. h.e.l.l, for the past year and a half Pellegrini has listened to his sergeant say as much at dozens of ghetto crime scenes.

"Hey, it don't matter to me," Landsman would tell the locals when witnesses refused to come forward. "I don't live around here."

Well, it was true; Pellegrini didn't live in Reservoir Hill. Given that distance, he can tell himself that as an investigator, his interest is limited to that of the technician. From that view, the death of Latonya Wallace is nothing more or less than a crime, a singular event that with two beers and a warm dinner will seem a universe away from a brick ranch house, a wife and two children in the Anne Arundel suburbs south of the city.

Once, talking with Eddie Brown about the case, Pellegrini actually caught hold of his own detachment. He and Brown had been bouncing theories back and forth when the strangest word slipped out, falling like a brick on the conversation.

"She had to know this guy in the first place, we know that much. I think this broad ..."

This broad. Pellegrini stopped almost immediately, then began searching for some other word.

"... this girl let her killer take her off the street because she knew him from somewhere else."

Pellegrini's sergeant was no different, of course. When one of the detail officers was looking at scene photos and asking questions, Landsman suddenly slipped into his standard deadpan.

"Who found her?" the detail officer asked.

"Post officer from the Central."

"Did the guy rape her?"

"The officer?" asked Landsman, feigning confusion. "Um, I don't think so. Maybe. We didn't ask him 'cause we figured the guy who killed her did that."

In any other world, the comedy would be appalling. But this is the annex office of CID homicide in the city of Baltimore, where everyone-Pellegrini included-manages to laugh at the cruelest kind of humor.

In his heart, Pellegrini knows that solving the Latonya Wallace case will not be a response to the death of a young girl as much as a matter of personal vindication. His obsession is not with the victim but with the victimizer. A child-any child-had been murdered on a February dayshift and, as the man who took the call, Pellegrini accepted the murder as a professional challenge. If the Latonya Wallace case goes down, then a child-killer has been beaten. The alibis, the deceit, the hiding-all of it means nothing at the point of arrest. At the sweet instant that those metal bracelets click, Pellegrini will know he has truly arrived, that he is-like any other man in that unit-worth a detective's shield and 120 hours of paid overtime. But if the case stays open, if somewhere in this world the killer lives to know he has beaten the detective, then Pellegrini will never be quite the same. Watching him sink into the case files day after day, the other men in the unit know that.

For the first month of the investigation, he had come as close to working around the clock as possible: sixteen hours a day, seven days a week. Sometimes he left for work with the sudden awareness that for several days running, he had come home only to sleep and shower, that he hadn't really spoken to his wife or enjoyed the new baby. Christopher had been born in December, the second son in three years, but Pellegrini had done little to help with the child in the last two months. He felt guilty about that, but a little bit relieved as well. At least the infant kept his wife occupied; Brenda had every right to insist on something more than an absentee husband, but so far, between feedings and diapers and everything else, little had been said.

His wife knew he was working the Latonya Wallace case, and somehow, in a year's time, she had accustomed herself to a detective's hours. In fact, the whole household seemed to revolve around the little girl. Once, as Pellegrini was walking out the door on a Sat.u.r.day morning, heading downtown for the third consecutive weekend, his older boy ran up to him.

"Play with me," Michael said.

"I have to go to work."

"You're working on Latonya Wallace," the three-year-old said.

By the middle of March, Pellegrini saw his health begin to suffer. He coughed in fits: a deep, rasping hack, worse than his usual smoker's wheeze, and it stayed with him through the day. At first he blamed the cigarettes; later, he complained about the aging ventilation system in the headquarters building. The other detectives were quick to join in: Never mind the cigarettes, they told him, the asbestos fibers set loose by cracking acoustic tile were enough to kill a man.

"Don't worry, Tom," Garvey told him after one morning roll call. "I hear that cancer you get from breathing asbestos is slow and lingering. You'll have plenty of time to work the case."

Pellegrini tried to laugh, but a thin wheeze gave way to the hacking. Two weeks later, he was still coughing. Worse, he was having trouble getting out of bed and more trouble staying awake at the office. No matter how much he slept, he managed to wake up exhausted. A short visit to the doctor yielded no obvious reasons, and the other detectives, armchair psychiatrists one and all, were quick to blame the Latonya Wallace file.

Veterans on the shift told him to forget the G.o.dd.a.m.n thing, to get back in the rotation and pick up a fresh murder. But the cutting in the Southeast only p.i.s.sed him off-all that argument and aggravation just to prove that some Perkins Homes dope dealer cut up a customer over $20. Likewise that dunker from the Civic Center, the one where the maintenance employee responded to complaints about his tardiness by killing his boss.

"Yeah, I stabbed him," the guy says, covered with the victim's blood. "He hit me first."

Christ.

A little girl has been raped and killed and the detective charged with solving the crime is in some other part of the city putting handcuffs on the most mindless s.h.i.tbirds. No, Pellegrini tells himself, the cure is not the next case, or the next case after that.

The cure is on his desk.

As the dayshift ends and the rest of D'Addario's detectives drift toward the elevators, Pellegrini stays put in the annex office, turning the stack of color photos in his hand and scanning the collection one more time.

What has he missed? What has been lost? What is still waiting for him up on Newington Avenue?

Holding one of the straight-on photographs of the body, Pellegrini stares at a thin metal rod resting on the sidewalk a few feet from the child's head. It isn't the first time he's looked at that metal rod and it won't be the last. To Pellegrini, that particular detail has come to symbolize everything that has gone wrong with the case.