Here's the full article by Dan Roberts:
(Ammoland.com) Nearly every mass shooting incident in the last twenty years, and multiple other instances of suicide and isolated shootings all share one thing in common, and its not the weapons used.
The overwhelming evidence points to the signal largest common factor in all of these incidents is the fact that all of the perpetrators were either actively taking
powerful psychotropic drugs or had been at some point in the immediate past before they committed their crimes.
**snip**
• Eric Harris age 17 (first on Zoloft then Luvox) and Dylan Klebold aged 18 (Columbine school shooting in Littleton, Colorado), killed 12 students and 1 teacher, and wounded 23 others, before killing themselves. Klebold's medical records have never been made available to the public.
• Jeff Weise, age 16, had been prescribed 60 mg/day of Prozac (three times the average starting dose for adults!) when he shot his grandfather, his grandfather's girlfriend and many fellow students at Red Lake, Minnesota. He then shot himself. 10 dead, 12 wounded.
• Cory Baadsgaard, age 16, Wahluke (Washington state) High School, was on Paxil (which caused him to have hallucinations) when he took a rifle to his high school and held 23 classmates hostage. He has no memory of the event.
• Chris Fetters, age 13, killed his favorite aunt while taking Prozac.
**snip**
• Andrew Golden, age 11, (Ritalin) and Mitchell Johnson, aged 14, (Ritalin) shot 15 people, killing four students, one teacher, and wounding 10 others.
• TJ Solomon, age 15, (Ritalin) high school student in Conyers, Georgia opened fire on and wounded six of his class mates.
• Rod Mathews, age 14, (Ritalin) beat a classmate to death with a bat.
• James Wilson, age 19, (various psychiatric drugs) from Breenwood, South Carolina, took a .22 caliber revolver into an elementary school killing two young girls, and wounding seven other children and two teachers.
• Elizabeth Bush, age 13, (Paxil) was responsible for a school shooting in Pennsylvania
• Jason Hoffman (Effexor and Celexa) – school shooting in El Cajon, California