When the head chef of a historic Philadelphia restaurant was found dead, investigators interviewed the usual suspects: family, friends and coworkers. As they sifted through the evidence, police uncovered a chilling tale of debt and deceit.

When a woman went missing, friends and family were determined to find her. Their worst fears were confirmed weeks later when her body was discovered. Blood evidence and computer forensics helped investigators to catch the killer, and convince the jury of his guilt.

After the suspect was convicted of arson and murder, he steadfastly maintained he did not commit the crimes, but he was sentenced to a minimum of 25 years in prison. He had no money, no lawyer and only a fifth grade education, but he never gave up. He turned to the law books in the prison library and television programs about forensic science, and set out to prove his innocence. [also marked as S12:25]