1. Laying the foundation
Three populations of school shooters
Three psychological types of school shooters
2. Psychopathic secondary school shooters
A word on psychopathic personalities
Attacks by psychopathic secondary school shooters
Robert Poulin
Brenda Spencer
Barry Loukaitis
Andrew Golden
Eric Harris
Robert Steinhäuser
Tim Kretschmer
3. Psychotic secondary school shooters
A word on psychotic symptoms
Attacks by psychotic secondary school shooters
Luke Woodham
Michael Carneal
Andrew Wurst
Kipland Kinkel
Dylan Klebold
Alvaro Castillo
Pekka-Eric Auvinen
4. Traumatized secondary school shooters
A word on trauma
Attacks by traumatized secondary school shooters
Eric Houston
Gary Scott Pennington
James Rouse
Evan Ramsey
Mitchell Johnson
Jason Hoffman
Jeffrey Weise
Eric Hainstock
Asa Coon
Thomas "T.J." Lane
5. College shooters : targeted attacks
Targeted attacks by psychopathic shooters
Gang Lu
Valery Fabrikant
Robert Flores
Targeted attacks by shooters with psychotic and psychopathic traits
Peter Odighizuwa
Biswanath Halder
Amy Bishop
6. College shooters : random and ambiguous attacks
Random attacks by psychopathic shooters
Charles Whitman
Wayne Lo
Random attacks by psychotic shooters
Seung Hui Cho
Steven Kazmierczak
Matti Saari
Ambiguous attacks
Edward Allaway
One Goh
7. Aberrant adult shooters
Young adults who attacked colleges they did not attend
Mark Lépine
Jillian Robbins
Kimveer Gill
Adults who attacked schools they had attended years before
Patrick Purdy
Bruco Eastwood
Wellington de Oliveira
Adam Lanza
Adults who attacked elementary schools to which they had no connection
Laurie Dann
James Wilson
Thomas Hamilton
Adult whose attack was in an atypical educational setting
Jiverly Wong
8. Patterns among school shooters
The significance of the body
Military failures
Educational failures
Occupational failures
Romantic failures
Frequent and significant relocations
Psychotic shooters : sibling rivalry
Other possible factors
External influences
Peer support
Ideologies and role models
Media violence
9. Preventing school shootings : threat assessment and warning signs
The many faces of school shooters
Threat assessment
What are the warning signs?
Forms of leakage
School assignments
Warning signs at home
Warning signs online
Sudden purchase of firearms
School employees
Aberrant attacks
The unpredictability of victim selection
Immediate aftermath
10. Key findings
Findings versus conventional wisdom
The magnitude of their attacks
Suicide among school shooters
The typology across the populations of shooters
Other observations.