* The afternoon found both men back at the squad room on the fifth floor of Parker Center. Each concentrated on his respective chores. Cassiletti perched in front of his typewriter, his large fingers diligently poking at the keys, filling in all the spaces on the Preliminary Investigation Report, and the two separate Death Reports. Mace sat at one of the scarred empty desks in a windowless corner of the large, open room. A television connected to a video player hung from brackets bolted to the acoustical-tiled ceiling. On it he watched the video footage from the Gower building's surveillance camera while he ate his sandwich from its cellophane wrapper and sipped lukewarm coffee. Actually, he was watching a copy. The original was safely stored in the evidence locker, away from anything with a magnetic field like a metal detector—and with the write-protect tab broken off. All these precautions were the result of painful lessons. As soon as they'd gotten to the Gower crime scene, Mace had sent one of the support officers around the neighborhood to seize any videotapes that might have recorded evidence. The building's security cameras were on a two-day recycle schedule. They took eight-second time-lapse photographs but switched to real time whenever the building's keypad was used. The officer had also recovered the videotape from a camera mounted on the roof of a nearby Bank of America. The cop had correctly noted that the camera's range included the alley running behind the apartment complex. Mace had had two copies made of each tape before returning to Parker Center. It was difficult not to play them immediately, but experience had also taught him that each playing of a tape degraded it—especially tape from a surveillance-camera video system that was constantly recycled. He began with the apartment-building tapes. A series of stills flashed across the television mounted high in the corner. The time and date showed in white dot-matrix-style print across the bottom right corner of the screen. Later the technicians from the photo lab of the Scientific Investigative Division would develop individual stills off this copy. Pausing the tape or running it in slow motion also caused degradation and loss of data. Later he would have all the time he needed to pore over the individual prints. Indeed, if this was like the last case, those images would be imprinted in negative on the insides of his eyelids. Now he reviewed the footage to make sure nothing that required immediate attention was missed. Spread before him were several sheets of paper from a yellow legal pad on which he charted a time line of events, beginning with when he'd arrived at the scene and working backward. The anonymous tip had come in at 4:13 A.M. to the Hollywood Division desk. The caller, who had not used 911, had been put on hold while the switchboard routed him through to Homicide. The information, delivered in a whisper, was that there'd been a killing at the address on Gower. The caller did not stay on the line long enough to be questioned further. A black-and-white unit had been the lirst to respond. The officers had duly recorded the times they received notification and when they arrived at the scene. Twelve minutes had elapsed. They found the apartment door open. Two minutes later they discovered the two victims and called in a report via land line to their watch sergeant. The coroner arrived at six-thirty, made small incisions beneath each of the women's rib cages, and inserted his chemical thermometer. He determined from the temperature of their livers and state of rigor that both had died within minutes of each other and no longer than six hours prior. That fixed the time of death between midnight and four that morning, pending any unusual findings when the toxicology reports came in. What Mace now knew was Munch's limousine had arrived at the apartment complex on Gower at 6:58 P.M. the previous evening. The tape showed the driver's arm,