Those answers provided comfort to the nephew Mary Sullivan never met: Boston author Casey Sherman, who had long held that his aunt had been murdered not by DeSalvo but by another man. He even wrote a book, "A Rose for Mary" about the investigation he launched to assuage his mother's nightmares. His mother Diane was just 17 when Mary Sullivan was murdered and she continued to dream of her sister, Sherman told ABC News.
"I am grateful this brings closure to me and to my mother most of all,'' Sherman said, his voice shaking with emotion. He got choked up, took a breath, and continued talking.
"For all these years it was just me and her chasing this case,'' Sherman said. "It took 49 years for police to say they legitimately got him."
But Elaine Sharpe, a lawyer for the DeSalvo family, insisted that police have not legitimately identified Albert as the Boston Strangler. She added that his nephew did not know he had been followed and inadvertently provided the evidence for the search warrant that will lead to the body being exhumed 30 years after it was buried.
"Just because they had DNA,'' Sharpe said, "Doesn't mean Albert DeSalvo killed her."
Massachusetts Attorney General Martha Coakley dismissed that assertion, saying: "We may have solved one of the nation's most notorious serial killings."