The "tour," it turned out, entailed a retrospective visit to the crime scenes. The purpose, as best I could ascertain, was for me to fix a map of them in my head. I couldn't argue. The idea was a good one. But it was the last thing I was expecting from him. Since when did he include me in anything unless he absolutely had no choice? "Got a few things you need to know," he said, as he adjusted the side mirror.

"I see. I suppose the implication is had I not agreed to your 'little tour' then you might never have gotten around to telling me these few things I need to know?"

"Whatever."

I waited patiently as he returned the lighter to its socket. He took his time settling more comfortably behind the wheel.

"Might interest you to know," he began, "we gave Petersen a polygraph yesterday and the sucker passed it. Pretty telling, but it don't completely let him off the hook. It's possible to pass it if you're one of these psychopaths who can lie as easy as other people breathe. He's an actor. He probably could say he's Christ crucified and his hands wouldn't sweat, his pulse would be steadier than yours and mine when we're in church."

"That would be highly unusual," I said. "It's pretty hard, close to impossible, to beat a polygraph. I don't care who you are."

"It's happened before. That's one reason it's not admissible in court."

"No, I won't go so far as to say it's infallible."

"Point is," he went on, "we don't have probable cause to pop him or even tell him not to skip town. So I've got him under surveillance. What we're really looking for is his activities after hours. Like, what he does at night. Like, maybe does he get in his car and drive through various neighborhoods, cruising, getting the lay of the land."

"He hasn't gone back to Charlottesville?"

Marino flicked an ash out the window. "He's hanging around for a while, says he's too upset to go back. He's moved, staying in an apartment on Freemont Avenue, says he can't set foot in the house after what happened. I think he's gonna sell the joint. Not that he'll need the money."

He glanced over at me and I was briefly faced with a distorted image of myself in his mirrored shades. "Turns out the wife had a hefty life insurance policy. Petersen's going to be about two hundred grand richer. Guess he'll be able to write his plays and not have to worry about making a living."

I didn't say anything.

"And I guess we just let it slide he was brought up on rape charges the summer after he graduated from high school."

"You've looked into that?"

I knew he had or he wouldn't have mentioned it.

"Turns out he was doing summer theater in New Orleans and made the mistake of taking some groupie too seriously. I've talked with the cop who investigated the case. According to him, Petersen's the lead actor in some play, and this babe in the audience gets the hots for him, comes to see him night after night, leaves him notes, the whole nine yards. Then she turns up backstage and they end up bar-hopping in the French Quarter. Next thing you know, she's calling the cops at four in the morning, all hysterical, claiming she's been raped. He's in hot water because her PERK's positive and the fluids pop up nonsecreter, which is what he is."

"Did the case go to court?"

"Damn grand jury threw it out. Petersen admitted having sex with her inside her apartment. Said it was consensual, she came on to him. The girl was pretty bruised up, even had a few marks on her neck. But no one could prove how fresh the bruises were and if Petersen caused 'em by working her over. See, the grand jury takes one look at a guy like him. They take into account he's in a play and this girl initiated the encounter. He still had her notes inside the dressing room, which clearly showed the girl had a thing for him. And he was real convincing when he testified she had bruises when he was with her, that she supposedly told him she'd been in a fight several days earlier with some guy she was in the process of breaking up with. Nobody's going to throw the book at Petersen. The girl had the morals of a guppy and was either a Froot Loop or else she made a stupid mistake, laid herself wide open, so to speak, for getting a number done on her."

"Those kinds of cases," I quietly commented, "are almost impossible to prove."

"Well, you just never know. It's also sort of coincidental," he added as a by-the-way for which I was completely unprepared, "that Benton called me up the other night to tell me the big mother computer in Quantico got a hit on the MO of whoever's whacking these women here in Richmond."

"Where?"

"Waltham, Massachusetts, as a matter of fact," he replied, glancing over at me. "Two years ago, right at the time Petersen was a senior at Harvard, which is about twenty miles east of Waltham. During the months of April and May, two women was raped and strangled inside their apartments. Both lived alone in first-floor apartments, was tied up with belts, electrical cords. The killer apparently got in through unsecured windows. Both times it occurred on the weekend. The crimes are a carbon copy of what's been happening here."

"Did the murders stop after Petersen graduated and moved here?"

"Not exactly," he replied. "There was one more later that summer which Petersen couldn't have committed because he was living here, his wife just starting at VMC. But there were a few differences in the third case. The victim was a teenager and lived about fifteen miles from where the other two homicides occurred.

She didn't live alone, was shacked up with a guy who was out of town at the time. The cops speculated her murder was a copycat some squirrel read about the first two in the papers and got the idea. She wasn't found for about a week, was so decom posed there wasn't a hope in hell of finding seminal fluid. Typing the killer wasn't possible."

"What about typing the first two cases?"

"Nonsecreter," he slowly said, staring straight ahead.

Silence. I reminded myself there are millions of men in the country who are nonsecreters and sex slayings happen every year in almost every major city. But the parallels were jolting.

We had turned onto a narrow, tree-lined street in a recently developed subdivision where all of the ranch-style houses looked alike and hinted of cramped space and low-budget building materials. There were realtor signs scattered about, and some of the homes were still under construction. Most of the lawns were newly seeded and landscaped with small dogwoods and fruit trees.

Two blocks down on the left was the small gray house where Brenda Steppe had been slain not quite two months ago. The house had not been rented or sold. Most people in the market for a new home aren't keen on the idea of moving into a place where someone has been brutally murdered. Planted in the yards of the houses on either side were "For Sale" signs.

We parked in front and sat quietly, the windows rolled down. There were few streetlights, I noted. At night it would be very dark, and if the killer was careful and wearing dark clothing, he wasn't going to be seen.

Marino said, "He got in the kitchen window around back. It appears she got home at nine, nine-thirty that night. We found a shopping bag in the living room. The last item she bought had the computer-printed time on it of eight-fifty P. M. She goes home and cooks a late dinner. That weekend it was warm, and I'm assuming she left the window open to air out the kitchen. Especially since it appears she'd been frying ground beef and onions.