The interrogation began like any other.

Kathryn Dance entered the interview room and found the forty-three-year-old man sitting at a metal table, shackled, looking up at her closely. Subjects always did this, of course, though never with such astonishing eyes. Their color was a blue unlike sky or ocean or famous gems.

"Good morning," she said, sitting down across from him.

"And to you," replied Daniel Pell, the man who eight years ago had knifed to death four members of a family for reasons he'd never shared. His voice was soft.

A slight smile on his bearded face, the small, sinewy man sat back, relaxed. His head, covered with long, gray-black hair, was cocked to the side. While most jailhouse interrogations were accompanied by a jingling sound-track of handcuff chains as subjects tried to prove their innocence with broad, predictable gestures, Daniel Pell sat perfectly still.

To Dance, a specialist in interrogation and kinesics-body language-Pell's demeanor and posture suggested caution, but also confidence and, curiously, amusement. He wore an orange jumpsuit, stenciled with "Capitola Correctional Facility" on the chest and "Inmate" unnecessarily decorating the back.

At the moment, though, Pell and Dance were not in Capitola but, rather, a secure interview room at the county courthouse in Salinas, forty miles away.

Pell continued his examination. First, he took in Dance's own eyes-a green complementary to his blue and framed by square, black-rimmed glasses. He then regarded her French-braided, dark blond hair, the black jacket and beneath it the thick, unrevealing white blouse. He noted too the empty holster on her hip. He was meticulous and in no hurry. (Interviewers and interviewees share mutual curiosity. She told the students in her interrogation seminars, "They're studying you as hard as you're studying them-usually even harder, since they have more to lose.")