Authorities say the pair stayed on the phone until the 8 p.m. lockdown at the maximum-security prison where he was serving a life sentence for murder.
Hernandez's family is reportedly attempting to acquire his brain for chronic traumatic encephalopathy (CTE) research at Boston University.
The autopsy on the body of former National Football League star Aaron Hernandez has been completed by the Massachusetts Office of the Chief Medical Examiner, Hernandez's defense attorney, Jose Baez, said on Thursday during a press conference.
Baez said he planned to file a protective order on the matter, and ask for an emergency hearing. "It is literally a destruction of evidence".
Baker, a Republican, says MA has made progress in reducing prison suicides in recent years.
No suicide note was left, but sources told Fox25Boston that "John 3:16" was written on his forehead and the wall of his prison cell.
Hernandez was in a single cell in a general population housing unit when he was found hanging from a bed sheet that he had attached to his cell window, according to officials. The Worcester County District Attorney's Office said now that the death investigation had concluded, the brain would be released to Boston University's CTE Center. In addition to one from the Massachusetts State Police, a second investigation is reportedly being spearheaded by attorney Jose Baez. She said investigators will be looking at "who was on duty, who signed what and what was signed by people".
Hernandez's body was released to the Faggas Funeral Home in Watertown, Massachusetts, after an autopsy. MA prison officials said Hernandez hanged him.
He had been serving a life sentence without parole for the 2013 slaying of a onetime friend.
Last week, Hernandez was acquitted in the 2012 drive-by shootings of two men in Boston.
Hernandez was found dead in his prison cell on Wednesday in an apparent suicide, five days after, a jury acquitted him of killing the two men outside a Boston nightclub in 2012.
News of the death came just hours before his former New England Patriots teammates visited the White House Wednesday to celebrate their Super Bowl victory. Many were searching for an explanation to the tragic end of a young man whose football skills at one point earned him a five-year, $40 million contract extension with the NFL's top franchise.
The Massachusetts Department of Corrections said state police will investigate what it called the apparent suicide of former New England Patriots player Aaron Hernandez, but others are promising to take a closer look into what happened. That was first reported by The Boston Globe, citing another one of Hernandez's lawyers.
What's to become of Hernandez's home and other assets is another unanswered question. It was put on the market for $1.5 million in 2016. Since then, the asking price has dropped to $1.3 million.
Lloyd's family is still pursuing their civil case, now against Hernandez's estate.