. >> old man bob was robert karey, well-known fence, loan shark, drug dealer, murdered at the back door of his east detroit home in the summer of 1987. kevin was already on the computer in 2009 so he pulled up the michigan department of corrections website, saw pictures of tommy and ray highers. confirmed they were in prison doing life without parole for the murder of old man bob. it was then it hit him. like a brick in the face. something about those pictures was very, very wrong. >> only one thing to do. kevin picked up the phone and called that old college roommate. a man he hadn't seen for at least a decade. this man. john hielscher. >> i said it was about old man bob. i started freaking out. i'm not doing it. i'm not doing any of this. >> how come? >> scared. felt scared. >> but if he was scared now, oh, just wait. mary's little post and the connections it pulled up in kevin's brain had just made john hielscher part of a team he wasn't sure he wanted to belong to and the next move was his. >> as a band of friends sets out on a journey to find justice, they first need to find out wh