finally private investigator eric collin answered.prosecution's case. now, they would visit key witness and death row inmates, michael wilson. but, could they reach him in time, back to the long road to freedom. >> by 2013, malcolm had been in prison for 19 years. his brother cory, for 22. >> are you ready to go? >> the days when their mom ruth ellen came to visit, help them hold, on the brothers drew strength from her. >> that lady right there, i had to wonder, if she still cared, or if she was still fighting for, me still believing in me, still praying on me. >> and malcolm was hopeful his mom's prayers would be answered. two prosecution witnesses had told his investigative team, that their testimony, was a lie. that left michael wilson, the man who told police he had given demarco bullets, and he had the murder weapon for him. if he recanted too, malcolm thought they had a chance. but michael wilson, refused to talk. and he had a good reason. he was on death row, for the 1995 murder of a convenience store manager. wilson, seen here