Nothing for a few seconds, then one of the dark figures moved, still squatting, and repositioned itself to the left of the door. Another figure came from around a corner and lowered itself to a deep crouch, both hands on its weapon.

A close-up inflated the new arrival, turning dark cloth into navy blue, revealing the bulk of protective vesting, white letters spelling out LAPD across a broad back. Combat boots. Blue ski mask revealing only eyes; I thought of Munich terrorists and knew something bad was going to happen.

But nothing did for the next few moments. The dog's ears were still stiff and his breathing had quickened.

Milo rubbed one shoe with another and ran his hand over his face. Then the brown door on the screen swung open on two people.

A man, bearded, long-haired, scrawny. The beard, a matted frenzy of blond and gray corkscrews. Above a blemished, knotted forehead, his hair haloed in spiky clumps, recalling a child's clumsily drawn sun.

The camera moved in on him, highlighting dirty flesh, sunken cheeks, bloodshot eyes so wide and bulging they threatened to shoot off the shaggy launchpad of his face.

He was naked from the waist up and sweating furiously. The wild eyes began rotating madly, never blinking, never settling. His mouth was agape, like a dental patient's, but no sound issued forth. He appeared to be toothless.

His left arm was clamped around a heavy black woman, imbedded so tightly in her soft, skirted waist that the fingers disappeared.

The skirt was green. Over it the woman wore a white blouse that had come partially untucked. She was around thirty-five and her face was wet, too- perspiration and tears. Her teeth were visible, lips stretched back in a rictus of horror.

The man's right arm was a bony yoke around her neck. Something silvery flashed in his hand as he pressed it up against her throat.

She closed her eyes and kept them clenched.

The man was leaning her back, pressing her to him, convexing her neck and revealing the full breadth of a big, shiny carving knife. Red-stained hands. Red-stained blade. Only her heels touched the pavement. She was off balance, an unwilling dancer.

The man blinked, darted his eyes, and looked at one of the SWAT cops. Several rifles were aimed at him. No one moved.

The woman trembled and the collaring hand moved involuntarily and brought forth a small red mark from her neck. The blotch stood out like a ruby.

She opened her eyes and stared straight ahead. The man screamed something to her, shook her, and they closed again.

The camera stayed on the two of them, then shifted smoothly to another of the SWAT men.

No one moved.

The dog was standing on the chair, breathing hard.

The bearded man's knife elbow quivered.

The man closed his mouth, opened it. Looked to be screaming at the top of his lungs, but the sound wasn't carrying.

The woman's mouth was still open. Her wound had already coagulated- just a nick.

The man propelled her onto the sidewalk, very slowly. One of her shoes came off. He didn't notice it, was looking from side to side, cop to cop, screaming nonstop.

All at once the sound came on. Very loud. New microphone.

The dog began barking.

The man with the knife screamed, a howling, hoarse and wet.

Panting. Wordless.

Pain scream.

My hands dug into my thighs. Milo faced the screen, immobile.

The bearded man shifted his head from side to side some more, faster, harder, as if being slapped. Screaming louder. Pressing the knife up under the woman's chin.

Her eyes shot open.

The dog's barks turned to growls, guttural and bearish, loud enough to be scary and a lot more threatening than the warning sounds he'd uttered last night.

The man with the knife was directing his screams at a SWAT man to his left, haranguing wordlessly, as if the two of them were friends turned hateful.

The cop might have said something because the madman upped his volume.

Roaring. Shrieking.

The man backed away, hugging the woman more tightly, concealing his face behind hers as he dragged her into the doorway.

Then a smile and a short, sharp twist of his wrist.

Another spot of blood- larger than the first- formed on the woman's throat.

She raised her hands reflexively, trying to bend out from under the knife, losing her balance and stumbling.

Her weight and the movement surprised the man, and for one brief moment, as he tried to keep her upright and haul her backward, he lowered his right arm.

A quick, sharp sound- like a single handclap- and a red dot appeared on the man's right cheek.

He spread his arms. Another dot materialized, just left of the first one.

The woman fell to the pavement as a rain of gunfire sounded- corn popping in an echo chamber. The man's hair blew back. His chest burst, and the front of his face turned into something amoebic and rosy- a pink and white kaleidoscope that seemed to unfold as it imploded.

The hostage was facedown, fetal. Bloodspray showered down on her.

The man, now faceless, slumped and sagged, but he remained on his feet for one hellish second, a gore-topped scarecrow, still gripping the knife as red juice poured out of his head. He had to be dead but he continued to stand, bending at the knees, his ruined head shadowing the hostage's shoulder.

Then all at once he let go of the knife and collapsed, falling on the woman, limp as a blanket. She twisted and struck out at him, finally freed herself and managed to rise to her knees, sobbing and covering her head with her hands.

Policemen ran to her.

One of the dead man's bare feet was touching her leg. She didn't notice it, but a cop did and kicked it away. Another officer, still ski-masked, stood over the faceless corpse, legs spread, gun pointed.

The screen went black. Then bright blue.

The dog was barking again, loud and insistent.

I made a shushing sound. He looked at me, cocked his head. Stared at me, confused. I went over to him and patted his back. His back muscles were jumping and drool trickled from his flews.

"It's okay, fella." My voice sounded false and my hands were cold. The dog licked one of them and looked up at me.

"It's okay," I repeated.

Milo rewound the tape. His jaw was bunched.

How long had the scene lasted- a few minutes? I felt as if I'd aged watching it.

I stroked the dog some more. Milo stared at the numbers on the VCR's counter.

"It's him, isn't it?" I said. "Hewitt. Screaming on my tape."

"Him or a good imitation."

"Who's the poor woman?"

"Another social worker at the center. Adeline Potthurst. She just happened to be sitting at the wrong desk when he ran out after killing Becky."

"How is she?"

"Physically, she's okay- minor lacerations. Emotionally?" He shrugged. "She took disability leave. Refused to talk to me or anyone else."

He ran a hand along the edge of a bookshelf, grazing book spines and toys.

"How'd you figure it out?" I said. "Hewitt on the "bad love' tape?"

"I'm not sure what I figured, actually."

He shrugged. His forelock cast a hat-brim shadow over his brow, and in the weak light of the library, his green eyes were drab.

The tape ejected. Milo put it on an end table and sat down. The dog waddled over to him, and this time Milo looked pleased to see him.

Rubbing the animal's thick neck, he said, "When I first heard your tape, something about it bugged me- reminded me of something. But I didn't know what it was, so I didn't say anything to you. I figured it was probably "bad love'- Hewitt's using the phrase, my reading about it in the clinic director's witness report."

"Had you watched the video before?"

He nodded. "But at the station, with half an ear- a bunch of other detectives sitting around, cheering when Hewitt bit it. Splatter's never been my thing. I was filling out forms, doing paperwork… When you told me about the tape, it still didn't trigger, but I wasn't that bugged. I figured what you did- a bad joke."