>> since alvin was a man of limited means, the court appointed attorney peter barbee to defend him.e couldn't understand why alvin would have killed the captain over a lifejacket, yet wasn't wearing it when he was found floating in the water the next day. >> i told alvin, i said, whatever you do, tell me the truth. i said, if you did it, that's all right. we'll figure out how to handle it. but, i said, whatever you do, tell me the truth. >> alvin now told his lawyer that he didn't kill tinky. he reverted to his original story, the one he told the coast guard the day after the storm, that tinky's death was an accident. >> i had to prove to a jury that he was vulnerable and very capable of confessing to something he didn't do. man, you would not believe how strong there is amongst people and the public that you wouldn't confess to something you wouldn't do. why would you confess to something you didn't do? >> to find out, barbee showed the entire eight hours of alvin's police interviews to dr. jill hayes-hammer, a forensic psychologist from the lsu school of medicine. >> come on, alvi

>> since alvin was a man of limited means, the court appointed attorney peter barbee to defend him.arbee couldn't understand why alvin would have killed the captain over a lifejacket, yet wasn't wearing it when he was found floating in the water the next day. >> i told alvin, i said, whatever you do, tell me the truth. i said, if you did it, that's all right. we'll figure out how to handle it. but, i said, whatever you do, tell me the truth. >> alvin now told his lawyer that he didn't kill tinky. he reverted to his original story, the one he told the coast guard the day after the storm, that tinky's death was an accident. >> i had to prove to a jury that he was vulnerable and very capable of confessing to something he didn't do. man, you would not believe how strong there is amongst people and the public that you wouldn't confess to something you wouldn't do. why would you confess to something you didn't do? >> to find out, barbee showed the entire eight hours of alvin's police interviews to dr. jill hayes-hammer, a forensic psychologist from the lsu school of medicine. >> come on,