Spreading death wherever he goes

A psychotic killer leaves body parts scattered across five states, changing modus operandi in a diabolical attempt to throw the police off his trail.

In Texas, Detective Dave Alison believes

The "Trash Bag Killer," now sitting on death row for those crimes, could be innocent.

What follows is a dramatic twist

In a five-year-old serial murder case that could seal the fate of the real killer. Can a police dragnet finally put an end to a "copycat" killer whose body count stands at 17?