Detectives Hope New Technology Will Help Track Down Zodiac Killer

The new technology used to track down the suspected Golden State killer could help identify another infamous serial killer in California.

Decades ago, the Zodiac Killer went on a crime spree that, to this day, remains unsolved.

The Zodiac Killer boasted about killing as many as 37 people.

The cryptic and taunting notes the Zodiac Killer sent to police and newspaper reporters may prove to be his undoing.

Detectives are now trying to recover DNA from the stamps and envelopes he used to mail those very letters.

Jim Jaksch has spent most of his career on the Zodiac Task Force, hunting the man who, 50 years ago, terrorized northern California.

He cautions any DNA recovered will only point to whoever licked the stamps or envelopes, and not necessarily the killer.