This guy,Russell Williams,was the commanding officer of Canada's largest Air Force base when these photos were taken.
Col. Russell Williams — Brilliant police interrogation and confession
The above link is to a 2 1/2 hour interrogation of this man by Jim Smyth of the Ontario Provincial Police's Behavioural Sciences Unit.
Lengthy video but well worth watching when you can find the time.
The interview starts friendly enough, with Russell smiling and looking relaxed. He is apparently confident about being "checked off" as being a suspect in this investigation.
At the end, he is a broken man, not only confessing his crimes but asking for maps so that he can point out where the bodies are buried.