School Shooters
Adam Lanza, Caleb Sharpe, Charles Carl Roberts IV, Devon Erickson, Jaylen Ray Fryberg, Jeff Weise, Kimveer Gill, Kip Kinkel, Mason Campbell, Pekka Eric Auvinen, Steven Kazmierczak, William Atchison
Mass Shooters
David Katz, James Holmes , John T Earnest, Patrick Crusius, Robert Hawkins,
Church Shooters
Devin Kelley, Dylann Roof, Matthew Murray
Obsessed Murderers
Kevin Loibl, Ricardo Lopez