>> police heard a story of seduction and manipulation, that billy had become spellbound by the sensuous, and more experienced, pamela smart. he would do anything for her, even kill. >> and the original plan was for him to try and find someone to kill gregg smart. and they really couldn't find anybody to kill him, you know. so eventually pam started putting pressure on billy to say, you got to kill gregg smart. and this is how you can do it. >> maggiato says billy tried and failed a few times to kill gregg and then asked his friends for help. >> and for the life of me, i'm not sure why, they agree to help him. and they agree to help him in part because pam says to them, you can have whatever you want out of the apartment. and billy tells them, she'll give you a thousand dollars each, which pam reneges on with billy later and says, i'll give them $500 each.