SALEM, Mass. (AP) — Two police officers say a Massachusetts teen charged with raping and killing his high school math teacher had a bloody box cutter and women’s underwear in his backpack when they detained him.

Topsfield Officers Neal Hovey and Joseph DeBernardo said in court Friday that they found Philip Chism, now 15, on a poorly lit stretch of a roadway carrying Colleen Ritzer’s ID and credit cards.

After bringing Chism back to the police station, Hovey said they found the box cutter and panties in his backpack.

The officers were testifying at a hearing where a judge is considering a request by Chism’s lawyers to have his police confession suppressed.

Chism has been charged as an adult with murder and aggravated rape in the October 2013 slaying of Ritzer, a popular 24-year-old teacher at Danvers High School. He has pleaded not guilty.