DNA Dragnet

DNA Dragnet refers to episode 20 of the Season 13 of the television series Forensic Files which was broadcast for the first time on May 15, 2009.

Plot summary
Digital enhancement of security camera video shows that what appears to be a casual encounter is actually a forced abduction, leading to murder.

The perpetrator's MO is remarkably similar to another murder which occurred five months earlier, 15 miles away. When investigators learn the crimes might not be isolated or random, they also realise a serial killer may be on the loose.