(NEWSER) – Philip Chism was indicted yesterday on a first-degree murder charge in the death of his Danvers, Mass., math teacher Colleen Ritzer last month—but he also faces aggravated rape and armed robbery charges for allegedly committing "horrific and unspeakable acts," the DA said. Armed with a box cutter he brought to school, CNN reports, prosecutors allege Chism, 14, beat Ritzer, raped her with an object, and robbed her of credit cards, an iPhone, and her underwear, before killing her. No motive was given, but a prosecutor emphasized there was no sign of wrongdoing on Ritzer's part, the Boston Globe reports.

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