Dzhokhar Tsarnaev's loyalty to brother, teen brain were explosive combination. April 23, 2013 — -- Dylan Klebold, the depressed senior at Columbine High School, had Eric Harris. Washington, D ...

Eric Harris (l.) and Dylan Klebold, carrying a TEC-9 semi-automatic pistol, are pictured in the cafeteria at Columbine High School, in Littleton, Colo., during their shooting rampage.

Three nights before the Columbine massacre, Dylan Klebold went to the senior prom. He pulled back his long hair, wore a tux and a bow tie. His mother, Sue Klebold, got out of bed when he came in ...

On April 20, 1999, Dylan Klebold and Eric Harris walked into Columbine High School in Littleton, Colo., and began a murderous rampage that left 12 students and 1 teacher dead.

Sue Klebold and Dylan Klebold, from “A Mother’s Reckoning.” (Courtesy of Sue Klebold) I greatly appreciated the information and insight provided by Carlos Lozada in his Feb. 14 Book World ...

Sue Klebold, the mother of Columbine killer Dylan Klebold, gave her first TV interview since the massacre nearly 17 years ago. “I think it’s easier for me to say ‘harmed’ than ‘killed ...

Photo: Eric Harris, left, and Dylan Klebold, carrying a TEC-9 semi-automatic pistol, are pictured in the cafeteria at Columbine High School. In her essay, Susan Klebold wrote about her own ...

Dylan Bennet Klebold was born in Denver, Colo., on Sept. 11, 1981. He was the second child of Thomas and Susan and the brother of Byron, three years older.

The essay by Susan Klebold, which appears in the November issue of O, The Oprah Magazine, explores her son’s role in the 1999 massacre where he and co-conspirator Eric Harris killed 12 students ...

Prior to The Traitors, Dylan Efron was primarily known for appearing alongside his actor brother in Down to Earth with Zac Efron (streaming with a Netflix subscription). Zac Efron caught some ...

On April 20, 1999, two teenagers named Dylan Klebold and Eric Harris shot and killed twelve students and one teacher at Columbine High School in Littleton, Colo., and then turned their guns on ...

And Klebold talks of a survey indicating that “83 percent of respondents said that the parents’ failure to teach Dylan and Eric proper values played a major part in the Columbine killings.” ...