Stories of children killing a family member.

The case of two neo-Nazi brothers who murdered their parents and brother in Allentown, Pa.

Two runaways find themselves on opposite ends of a Satanic ritual; a killer claims the devil made him murder his parents.

A girl's 1961 disappearance is examined. Also: teens obsessed with vampires, devil worship and drugs.

An abusive father becomes a casualty of his own hate at the hands of his young son; a serial killer stalks a small town and the local police set a risky trap using one of his surviving victims as bait.

A teen is coerced into participating in a deadly criminal plan; three teens become involved in petty theft and murder.

An abandoned boy turns to violence; a mother finds a disturbing message on social media that leads to a murder investigation.

A mother manipulates her daughter into a murder plot; two goth teens become involved in a love affair filled with sex, drugs and murder.

Teens inspired by "The Godfather" form their own organized crime group. Also: youth sports turn ugly when a bullied kid fights back.

A case involving bullying in a small Illinois town; a hunt for a serial killer in Rhode Island.

Teenagers, who because of hormones and development within the brain, cannot deal with intense, raw emotions.

A deadly shooting carried out by a teen at a San Diego elementary school.

The relationship between a school girl and her new friend spirals out of control when a rival takes offense; a teen obsessed with his ex-girlfriend is unable to contain his jealous rage.

A violent ex-con's jealousy leads to a massacre; a boy shows early signs of being a psychopath.

A family's 2004 murder in Roswell, N.M., is the focus.

A 1991 robbery of an auto parts store goes awry; a thief kidnaps a cashier at a convenience store.

Two girls in love conspire to commit murder after they are bullied and shunned; two teens fall in love with the same girl and it changes all three of their lives.

A teen boy gets involved in a dangerous online relationship; a very real monster terrorizes Amarillo, Texas, on Halloween night 1979.

The 1997 murder of a family in Washington state; the 1991 disappearance of two kids in Virginia.

An outcast joins a military-style cult of misfit teens who are brainwashed into committing crimes; two high-school football players share a fantasy of carrying out an armed robbery.

A Texas girl convinces two friends to commit a crime; a girl gets her boyfriend to solve her issues with her mother for good.

A look at antisocial adolescents who found unity in gangs or criminal cults only for tragedy to strike.

The body of an elderly woman is found spray-painted in red; a boy kills his grandparents after he was prescribed a medication for anxiety.