Joe Dziemianowicz

Investigators searching for a missing widow get caught up with the federal hunt for notorious skyjacker D.B. Cooper.

Atlanta investigators searching for the killer of a local businessman turn up a shocking crime network of police officers and civilians.

The search for a beloved missing 17-year-old California girl leads to a deadly conspiracy by a pair closest to her.

As police worked the triple homicide, they discovered a fourth victim had been killed the same way days earlier at another inn.

Serial snipers John Allen Muhammad, Lee Boyd Malvo randomly killed in broad daylight and terrorized the DC metro area.

The search for a missing grandmother, a former bondswoman, leads investigators to three more victimized elderly women. 

The fatal shooting of an "American hero" looked like "an open and shut case" until investigators dug deeper and found the real killers.

The brutal slaying of an immigrant family's son spreads terror through the tight-knit Orange County Vietnamese community.

Before killing Breezy Otteson, Jerrod Baum forced her to watch as he repeatedly stabbed her boyfriend Riley Powell.

The victim's boyfriend, the prime suspect in the case, committed suicide while he was under investigation.