Colleen Ritzer was the kind of high school teacher who made geometry and algebra classes fun. Just a few years older than her students, she used Twitter to send homework assignments and ...

Judge David Lowy handed down the sentence after hearing victim impact statements from Ritzer's loved ones. He called the slaying "brutal and senseless." "Colleen Ritzer lived a life of quiet ...

Chism was 14 when he raped, robbed, and murdered Colleen Ritzer in a Danvers High School bathroom on Oct. 22, 2013. He was convicted of first-degree murder, aggravated rape, and armed robbery in ...

Danvers High School math teacher Colleen Ritzer was allegedly killed on October 22 by 14-year-old freshman Philip Chism after being robbed and raped. He is currently on trial for the gruesome ...

The civil case that followed the criminal one that put the rapist and killer of Danvers teacher Colleen Ritzer in state prison for life with the possibility of parole in 40 years has come to a close.

Philip Chism, the Massachusetts teenager accused of raping and killing his algebra teacher, became visibly upset when the teacher, Colleen Ritzer, spoke about the teen’s home state of Tennessee ...

SALEM (CBS/AP) — Teenager Philip Chism was sentenced Friday to serve at least 40 years in prison for the rape and murder of Danvers High School teacher Colleen Ritzer in 2013. "The crashing ...

Philip Chism (right), who was accused of first-degree murder, along with rape and robbery, in the slaying of his teacher Colleen Ritzer (left), is seen during his sentencing in Salem Superior Court.

The documents released Friday say that Massachusetts detectives believe Philip Chism planned the gruesome murder of Colleen Ritzer, 24, because he came to school that day with a box cutter ...

Prosecutors believe Philip Chism forced Colleen Ritzer to have sex with him after dragging her into a teachers' bathroom at Danvers High School, where she was a teacher and he was a student.

In the last recorded footage of popular teacher Colleen Ritzer, she’s walking down the school corridor with a smile. Surveillance cameras show Colleen, 24, waving to someone out of sight before ...