25-year-old Donovan Parks was shopping for cat food after church at a small-town Wal-Mart when he crossed paths with a man shopping for someone to kill. Sixteen minutes later, Donovan was dead. Journalist Jeremy Campbell was asked to serve as a media witness for the execution. Follow his journey as he and a team of investigators learn all they can about the crime, the man being executed, the victim and the controversy surrounding the death penalty in America.