In some respects, the alleged mass mur­derer in Aurora, Colo. fits a pro­file of the typ­ical mass killer that my col­league James Alan Fox and I devel­oped some 30 years ago.

In all like­li­hood, the Col­orado killer was depressed and socially iso­lated, having no place to turn when he got into trouble. In addi­tion, he likely blamed every­body but him­self for his per­sonal prob­lems and had access to and training in the use of semi-​​automatic firearms.

Yet the per­pe­trator of the Aurora mas­sacre also dif­fers from most other mass killers in impor­tant ways.

Read the article at New York Daily News →