Connecticut teen sentenced to 25 years for 2014 prom-day slaying

June 6 (Reuters) - A Connecticut teenager was sentenced to 25 years in prison Monday for stabbing to death a female classmate in a school hallway hours before their 2014 junior prom.

Christopher Plaskon, 19, pleaded no contest in March to charges that he killed 16-year-old Maren Sanchez, the junior class president and a National Honor Society student, at Milford's Jonathan Law High School in April 2014.

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Connecticut Superior Court Judge John Ronan sentenced him in a Monday morning hearing, a court official confirmed.

Police said Plaskon attacked Sanchez in a hallway on the Friday morning of the prom, fatally stabbing her in the neck and torso. Police believe that he killed her after she rejected his invitation to the annual formal dance.

See more of Plaskon's victim and the response to her death:

A knife was recovered near the crime scene, a police report stated. A witness saw Plaskon discard the bloody knife onto a hallway floor, according to the report.

According to court documents, as he was taken into custody, covered in blood, Plaskon told the arresting officer: "I did it. Just arrest me."

(Reporting by Scott Malone in Boston, editing by G Crosse)