Signs of a Psychopath

On a quiet winter night, a mother finds her 22-year-old son horrifically dismembered in her basement. The lone suspect is the victim's ex-girlfriend, who is at her home in an emotionless state with blood on her hands.

Weeks after an 18-year-old man's friend reports him missing, his clothing turns up burned in a trash can behind a suburban home. When witnesses lead investigators to a young man with a history of violence, they soon learn he had not worked alone.

A 19-year-old woman vanishes, and the suspect is a former high school classmate with whom she was communicating days earlier. The family is weary, for the suspect has a notorious past filled with sexual deviancy and homicidal urges toward women.

A man finds his family slaughtered in their West Virginia home. The oldest son, 16-year-old Gavin Smith, is missing. He turns up hiding at his girlfriend's. As their stories unravel, the only thing that adds up is that one plus one equals two psychopaths.

After meeting with her divorce attorney and estranged husband, a devoted mother of three vanishes into thin air. As friends and family desperately try to locate her, the husband instead plays a psychopathic game of cat and mouse with investigators.

Hikers in Portland discover the badly decomposed body of a raped and strangled young girl. A month later, another woman turns up brutally murdered in same fashion. The prime suspect is a homeless drifter harboring dark sexual fantasies.

A 33-year-old oil rig worker calls 911 to report his girlfriend missing. He seems to be helping in the time-critical hunt to find her. A failed polygraph test leads detectives to suspect this seemingly caring boyfriend is a total psychopath.

Martine Bernard's family reports her missing. She is six months pregnant. Days later, her father also vanishes. When officers interview Martine's husband, Cassandritz Blanc, they find a calculating psychopath willing to do anything to cover his tracks.

When a 64-year-old grandmother doesn't return home from her morning walk, local police uncover that the man responsible for her disappearance is not only a pathological liar but a sexually deviant psychopath carrying out a twisted fantasy.

The idea that a child may possess the same wicked traits found in the most sadistic killers is every parent's worst nightmare. In this special, experts examine the early warning signs in psychopathic killers apprehended as teens and young adults.