Signed, Sealed & Delivered

Signed, Sealed & Delivered refers to episode 25 of the Season 10 of the television series Forensic Files which was broadcast for the first time on November 23, 2005.

Plot summary
Two men were convicted of intentionally shooting and killing a passenger in a moving car, their friend was granted immunity for testifying against them, and the case was closed.

Then a bomb exploded in the family home of the state's witness, instantly killing his father. Investigators turned to forensic science, hoping to determine if this was an act of revenge and if there was a way to link the two deadly crimes.