The murder trial of a teenager charged with killing his math teacher ended early Tuesday when he told his lawyer he was "about to explode" and refused to go back into the courtroom. Denise Regan, a ...

A 15-year-old Massachusetts boy charged with killing his math teacher is returning to court for arraignment on a second rape charge. Philip Chism is charged in the October killing of Colleen Ritzer, a ...

A Massachusetts teen was sentenced Friday to at least 40 years in prison for the 2013 rape and killing of his high school teacher whose body was found discarded in a recycling bin in the woods. The ...

A Massachusetts teenager who raped and killed his high school math teacher "knew right from wrong and could choose right from wrong," a prosecutor said Monday during closing arguments in the teen's ...

BOSTON (AP) — One day in the fall of 2013, Colleen Ritzer asked one of her 9th-grade algebra students to stay after school. Hours later, the body of the popular, 24-year-old teacher was found in ...