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 ...

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.

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 ...

SALEM (CBS) – The prosecution rested its case Monday in the Colleen Ritzer murder trial after showing the jury more chilling video of the Danvers High School teacher that was recorded shortly ...

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.

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 ...

Colleen Ritzer was a creature of habit. She rose at the same time every morning, saying good morning to her still-slumbering parents as she headed off to teach math at Danvers High School ...

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 ...

Rania Rhaedaoui says she saw suspect interact with Ms. Ritzer on day she died. Oct. 24, 2013— -- Danvers High School teacher Colleen Ritzer offered suspect Philip Chism after-school math ...

The fundraiser is scheduled for May 4 at 8:30 a.m. Here's more information from the event's Facebook page: Colleen Ritzer's friends and family created this annual event to honor her life and her ...