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A 32-year-old man vanishes in Fort Meyers, Fla., and police quickly link an abandoned, blood soaked vehicle to his case, but investigators must determine if this missing man is a victim or killer.

Investigators follow a surveillance trail to uncover the events that led to the death of an Arizona man, who is shot in his garage before he is able to read the results of a paternity test.

A woman accused of attempting to hire a hit man to kill her husband.

After a 25-year-old mother is gunned down in broad daylight by a murderer wearing a disguise, detectives confront a most unlikely suspect.

After a former beauty queen and mother of eight is found unconscious in her bathtub following a facelift, her death appears to be an accident; when her doctor husband is caught in a series of deceptions, it raises alarms with investigators.

Months after a woman and her husband come down with the same mysterious illness, the woman dies after experiencing the same symptoms; old recordings reveal the twisted truth about her demise.

A 32-year-old man vanishes in Fort Meyers, Fla., and police quickly link an abandoned, blood soaked vehicle to his case, but investigators must determine if this missing man is a victim or killer.

Investigators follow a surveillance trail to uncover the events that led to the death of an Arizona man, who is shot in his garage before he is able to read the results of a paternity test.

A woman accused of attempting to hire a hit man to kill her husband.

After a 25-year-old mother is gunned down in broad daylight by a murderer wearing a disguise, detectives confront a most unlikely suspect.

After a former beauty queen and mother of eight is found unconscious in her bathtub following a facelift, her death appears to be an accident; when her doctor husband is caught in a series of deceptions, it raises alarms with investigators.

A small town encounters satanic rituals and a savage killer.

When a loving father is gunned down in upstate New York, a hunt for the gunman crosses state lines; as several suspects are brought in, investigators must determine who's telling the truth to reveal the mastermind.

After moving to a quiet seaside town in Maine, a family experiences a night shattered by a barrage of gunfire.

A small town encounters satanic rituals and a savage killer.

Two Altadena, Calif., families fear for their lives when an LAPD cop moves in next door.

After moving to a quiet seaside town in Maine, a family experiences a night shattered by a barrage of gunfire.

A small town encounters satanic rituals and a savage killer.

A Texas woman discovers her husband's brutally stabbed body in their ransacked home and police suspect he was the victim of a robbery gone wrong, but the investigation reveals a torrid love affair.

A group of adventurous Americans thought they had stumbled into paradise on the warm waters of a tropical hideaway.

A small town encounters satanic rituals and a savage killer.

Two Altadena, Calif., families fear for their lives when an LAPD cop moves in next door.

When a loving father is gunned down in upstate New York, a hunt for the gunman crosses state lines; as several suspects are brought in, investigators must determine who's telling the truth to reveal the mastermind.

A Texas woman discovers her husband's brutally stabbed body in their ransacked home and police suspect he was the victim of a robbery gone wrong, but the investigation reveals a torrid love affair.

The mysterious and near fatal shooting of an America security analyst outside Washington, DC may be linked to the murder of a Russian agent in London.

When a married art teacher is shot to death in her home, police untangle a complex web of relationships, including a three-way affair; Blayne Alexander revisits the twisted motive at the center of this case.

Single mother Nicole Halpin is murdered in her home and her two children witness the attack, but justice will prevail when detectives sift through a list of Nicole's admirers to find her killer.

A group of adventurous Americans thought they had stumbled into paradise on the warm waters of a tropical hideaway.

When a loving father is gunned down in upstate New York, a hunt for the gunman crosses state lines; as several suspects are brought in, investigators must determine who's telling the truth to reveal the mastermind.