Introduction: Mind of a Rampage Killer (01:43)
In the wake of the Newtown massacre, we consider whether killers are born or made.
Sponsors: Mind of a Rampage Killer (00:47)
Sponsors: Mind of a Rampage Killer
Andy Williams (01:59)
Footage shows Andy Williams as a normal infant. He committed a school shooting in a San Diego suburb. How do people turn into rampage killers?
Origins of Research on Mass Shooters (01:46)
An expert rejects the attempt to explain mass shooters by diagnosis. 1966 spree shooter Charles Whitman's brain was autopsied at his request, the first such research.
Parts of Brain (02:04)
The prefrontal cortex calms the amygdala when a threat the amygdala perceives is not real. The wiring there tends to be faulty in violent people.
Genes and Environment (02:51)
Studies on rats show how nurture turns genes on or off, shaping behavior.
Strange Situation Experiment (03:58)
The baby gets upset when the mother leaves. Most mothers are able to comfort the baby on return, but some are too distant and fail.
Adolescent Brain (01:41)
During adolescence, the brain is extremely sensitive to threats. Stress can stunt development of the prefrontal cortex.
Andy Williams (03:11)
Andy Williams committed a school shooting at Santana High in Santee, CA. Father Jeff says he was not obsessed with violence. He used Jeff's gun.
School Shooter's Emotional Issues (01:18)
Andy Williams and his father had recently moved to California, away from his mother. Williams was badly bullied and sunk into despair.
Attempting Suicide by Cop (01:42)
Santana High shooter Andy Williams, now 27, gives an interview from prison. He wanted to be shot by cops and did not expect others would die.
Not Fitting In (00:56)
A sociologist studying school shooters finds that they are not loners, but rather people who try and fail to fit in in often tight-knit communities.
Dylan Klebold (01:59)
Klebold and Harris killed 13 at Columbine. Klebold was depressed, but hid his inner life from his parents. An expert reviews his writings.
Stroop Test (03:00)
Depressed people perform poorly on the Stroop Test, failing to activate necessary brain regions. These results may explain why they fixate on suicidal thoughts.
Desire for Fame (03:12)
Rampage shooters feel others see them as nobody, and want to change their image. Some cast themselves as Hollywood villains.
Stopping Rampages (03:33)
Can we spot warning signs for violence? Scientists have some ability to predict violent individuals, but most with risk factors never commit violence.
Juvenile Treatment Center (04:15)
At a juvenile treatment center handling Wisconsin's most violent teens, inmates talk to a psychologist about turning to violence in response to bullying.
Behavior Modification (03:25)
A juvenile treatment gives rewards and punishment for behavior and turns out a lower rate of repeat offenders than traditional youth prisons.
Mental Health Care Needs (01:47)
A mother worries that her 13-year-old son's, prone to uncontrollable violent rages, could become Adam Lanza. Her blog post on mental illness went viral.
Volatile Son (01:38)
A mother talks about early signs of mental problems in her son. He has pulled a knife on her.
Uncontrollable Behavior (02:28)
A volatile teenager talks about what it is like to go into an uncontrollable rage. His mother talks about her experience.
Lack of Diagnosis (01:08)
Medical science has been unable to cure or even settle on a diagnosis for a troubled child, but he is taking various medications.
Need for Intervention (02:03)
After Newtown, a mother worried about her volatile son becoming like Adam Lanza.
Credits: Mind of a Rampage Killer (01:23)
Credits: Mind of a Rampage Killer
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