The news comes just days after Hernandez was acquitted of a double murder. Hernandez was still serving a life sentence after being found guilty in the 2013 murder of Odin Lloyd.
Hernandez was 27.
In a statement, the Massachusetts Department of Corrections outlined the event:
“On April 19, 2017, Aaron Hernandez was discovered hanged in his cell by corrections officers at the Souza Baranowski Correctional Center in Shirley, Massachusetts at approximately 3:05 a.m., lifesaving techniques were attempted on Mr. Hernandez and he was transported to UMASS Leominster where he was pronounced dead at 4:07 a.m. by a physician at the hospital.
“Mr. Hernandez was in a single cell in a general population housing unit. Mr. Hernandez hanged himself utilizing a bed sheet that he attached to his cell window. Mr. Hernandez also attempted to block his door from the inside by jamming the door with various items. The Massachusetts State Police are on scene and the investigation continues.