The Pennsylvania Department of Corrections filed the agreement for Tyrone Briggs' family on Tuesday, the Philadelphia Inquirer reports.
Briggs -- who had asthma -- was arrested at 15 years old for raping a girl two years his junior at gunpoint.
He was facing up to 30 years in the State Correctional Institution at Mahanoy, when a corrections officer tried to break up a fight and sprayed prolonged streams of pepper spray at Briggs' face, authorities previously said.
Click here for the full report by the Philadelphia Inquirer.
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