Christopher Plaskon, 18, pleaded no contest Monday on charges that he murdered classmate Maren Sanchez in 2014. Sanchez was 16 and a junior at Jonathan Law High School in Milford, Connecticut, when Plaskon stabbed her to death. Sanchez had rejected his invitation to come with him to the prom.

Teen Who Stabbed Classmate to Death for Rejecting His Prom Invitation Pleads No Contest

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