Charges filed against 3 inmates for prison attack

39-year-old Jose Crespo, 36-year-old Heriberto Rivera-Negron, and 30-year-old Jeffrey Tapia are being charged with mayhem, armed assault to murder and assault to murder, the Massachusetts Department of Correction announced. Follow NBC10 Boston: https://instagram.com/nbc10boston https://tiktok.com/@nbc10boston https://facebook.com/NBC10Boston https://twitter.com/NBC10Boston