TV Guide Investigation Discovery Tuesday

Single mother, Jennifer Brown, vanishes from her Limerick home and detectives race against the clock to find her. Her 8-year-old son asks where his mother is.

Three women bond over their love of Wicca and witchcraft, but one of them becomes convinced that a more powerful witch has placed a curse on them.

A woman is murdered in the town of Winnsboro, Texas, and the ensuing investigation reveals this small town has a few wolves masquerading in sheep's clothing.

Francis "Nicky" Nicolosi was found murdered on a 44-acre apple orchard, in September 2001 at the age of 75, but the police discover something more to the case.

Corinne Stoudt thought she had a second chance at love, but when she was found strangled to death in her home, her husband Calvin became a person of interest.

Three respected members of a tightknit community of award-winning Christmas tree farmers are brutally gunned down by a cold-blooded killer.

When a Chicago doctor is found tortured and killed, a tight circle of doctors wonders if the killer of one of their own came from within.

After a long-lost daughter reunites with her family, their peaceful Florida neighborhood is devastated by scandal, betrayal and a double murder.

When a basketball star goes missing, his college sports community is thrust into a deadly scandal.

A young mother is found dead on the side of a rural stretch of highway in Tulsa, Okla., in an apparent hit-and-run accident, but soon the truth comes out.

Student Gina Hall goes out for a night of dancing and never returns home to Radford, Virginia, so the police follow her trail to a mysterious lake house.

Detective Waltemeyer is put in charge of the very first cold case for Anne Arundel County, Md., and the first case is the murder of 14-year-old Lisa Haenel.

One night in 1993, in Manhattan Beach, Calif., a police officer is shot and killed while conducting a routine traffic stop, and a young boy is the only witness.

Marjorie Diehl-Armstrong had a promising future, but she goes down a sinister path of manipulation, bank robbery and multiple gruesome murders.

Marjorie Diehl-Armstrong had a promising future, but she goes down a sinister path of manipulation, bank robbery and multiple gruesome murders.

When David Matusiewicz's parents move in, his family's need for control over the children leads to allegations of abuse, a kidnapping and a brutal murder.

When David Matusiewicz's parents move in, his family's need for control over the children leads to allegations of abuse, a kidnapping and a brutal murder.

Drug kingpin Clarence Heatley ruled New York City in the early 1990s and he rakes in millions during the crack epidemic, murdering anyone who gets in his way.

Drug kingpin Clarence Heatley ruled New York City in the early 1990s and he rakes in millions during the crack epidemic, murdering anyone who gets in his way.

After 9 years of marriage, Terry Patzer can't explain how her former lover, Russell Tillis, became so twisted, but she was right to be afraid of him all along.

A dad learns his son is behind three murders across Oregon and California. Ken makes the agonizing choice to call authorities and turn in his own son.

A teenager wakes up to a nightmare after a late night 911 call reveals a shocking crime inside his home. Investigators confront a rare claim.

Margie Bult thinks her second husband resembles a fugitive named Paul Steven Mack, so she vows to uncover the truth no matter the risk to herself.

A dad learns his son is behind three murders across Oregon and California. Ken makes the agonizing choice to call authorities and turn in his own son.

A teenager wakes up to a nightmare after a late night 911 call reveals a shocking crime inside his home. Investigators confront a rare claim.

Margie Bult thinks her second husband resembles a fugitive named Paul Steven Mack, so she vows to uncover the truth no matter the risk to herself.

After 9 years of marriage, Terry Patzer can't explain how her former lover, Russell Tillis, became so twisted, but she was right to be afraid of him all along.

A town council member's murder appears to be committed by a professional killer when a single bullet is the only evidence uncovered that caused her death.

Residents in the small town of Grand Ledge, Mich., are shocked when a retired police officer and his wife are found brutally murdered inside of their home.