George Nassar, a twice-convicted murderer who said that his former cellmate Albert DeSalvo had confessed to him that he had killed the 13 women, died in a prison hospital on Dec. 3, 2018.
A fellow inmate, Albert DeSalvo, told him that he was the Boston Strangler who had killed 13 women in the early 1960s. Mr. Nassar’s death, in 2018, had gone unreported.