you know, i had very little representation. >> willis says that after sentencing, his cousin billy toldpressured by authorities to testify against him. from his cell on death row, ernest willis maintains his innocence. with the forensic evidence against him, the chances of anyone listening may be slim. coming up, is the same evidence that convicted ernest willis the key to releasing him from death row? advances in arson science provide a ray of hope for willis. >> everything that they said was obsolete. a fire don't happen the way they say it happens. that's logistics. ♪ ♪ medicine that can't wait legal briefs there by eight, ♪ ♪ that's logistics. ♪ ♪ freight for you, box for me box that keeps you healthy, ♪ ♪ that's logistics. ♪ ♪ saving time, cutting stress, when you use ups ♪ ♪ that's logistics. ♪ [ man #1 ] i was fascinated by balsa wood airplanes since i was a kid. [ man #2 ] i always wondered how did an airplane get in the air. at ge aviation, we build jet engines. we lift people up off the ground to 35 thousand feet. these engines are built by hand with very precise assembly tech