Aaron Hernandez, the former Patriots football player, took his own life in his cell at Souza-Baranowski Correctional Center on Wednesday morning.
Hernandez was transported to the UMass Leominster hospital and was pronounced dead at 4:07 am, according to the statement. Guards said he hung himself using a bed sheet attached to a window.
Before taking his own life, Hernandez reportedly blocked his cell door from the inside - jamming it with some of his personal items.
Hernandez was acquitted Friday in the 2012 double murder that prosecutors said was fuelled by his anger over a spilled drink.
Lloyd, a football player who was dating the sister of Hernandez's fiancée, was found dead in a MA industrial park near the star player's home in 2013.
Christopher Fallon, spokesman for the Department of Correction, said there was no indication that he was considering hurting himself so he was not on suicide watch. An autopsy will be performed by the medical examiner's office in Boston to determine his cause and manner of death, according to the Worcester District Attorney's Office. One of his attorneys said Hernandez was relieved about the verdict.
Hernandez had signed a contract extension which included a signing bonus of €11.6 million before the 2012 season, making him the best paid player ever in his tight end position.
Lisa Newman-Polk, a former mental health worker at the prison, says prisoners serving life sentences are always flagged as higher risk for mental health problems.
The jury found Hernandez not guilty of first-degree murder in the killings of Daniel de Abreu and Safiro Furtado.
Aaron Hernandez's death means his murder conviction is likely to disappear.
Hernandez was cleared of all the charges he faced in the second case but one count of weapons possession.
As tight-end, Hernandez caught passes for almost 2,000 yards and scored 18 touchdowns.
Hernandez leaves behind his wife Shayanna Jenkins-Hernandez and a four-year-old daughter.
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