Philip Chism , now 16 , helped investigators locate Collen Ritzer 's body after her arrest in October 2013 . Judge ruled unanimously that a taped police confession is now not admissible . Police coerced Chism - then 14 - to confess when he wanted to remain silent , defense attorneys said . Items seized from Chism after arrest , including Ritzer 's credit cards , a bloody box , and women 's underwear , are allowed to be examined at trial . Chism has admitted raping and murdering the year - old teacher .
Philip Chism , now 16 , helped investigators locate Collen Ritzer 's body after her death in October 2013 . Judge ruled Tuesday that a taped police confession is now not admissible . Police coerced Chism - then 14 - to confess when he wanted to remain silent , defense attorneys said . Items seized from Chism after arrest , including Ritzer 's credit cards , a bloody box cutter and women 's underwear , are allowed to be used at trial . Chism has deined raping and murdering the 24-year-old teacher .