The talking to police thread in legal beagle reminded me of this story we just caught on Dateline or 20/20 whatever..
Basically, if you don't know the story, a young girl was changing in her car - in a carpool parking lot and was shot and killed. The only person in the parking lot at the time was a security guard.
They had to go to court three times to get a conviction but they finally got one. The evidence? Him constantly talking. Hours and hours of interview picked apart and put into the context they needed.
Any other evidence? Motive, subjective. Gun? No. Blood? No, well there was blood under her nail, not his, didn't matter. Defensive wounds on him? No. Blood on his clothes? No. Tested for gun shot residue? No.
Basically, if he would had never said a word, he wouldn't be sitting in prison for forty years (before he can get parole).
If you can find it, watch it, it is amazing the complete lack of any evidence they had. Did he do it? Probably, the window was rolled half down, he was in uniform, he knew a lot about it. Should he had been convicted? No.
http://articles.latimes.com/2009/dec...in19-2009dec19