Suspected serial child killer Arthur Ream is dead, and a detective close to the case shared some of his last words.

A 13-year-old girl vanished on her way to school in Ann Arbor 53 years ago.

Nadine O’dell was 16 years old when she vanished while walking to meet her boyfriend in Inkster. That was 48 years ago.

MACOMB TOWNSHIP, Mich. - Warren police said they found clothing Friday at the homicide search site in Macomb Township that's possibly connected to convicted killer Arthur Ream. Police are digging at the site as part of a search for victims in unsolved homicide cases, and the dig might be connected to Ream, police said. READ: Inside the mind of Arthur Ream, convicted killer writing behind barsZarzycki disappeared April 20, 1986, when she was 13 years old. RELATED: More of convicted killer Arthur Ream's prison writingsInvestigators are working with authorities from Warren, Canton Township, Macomb County, Michigan State Police and the FBI. Police said the primary goal of the search is to figure out what happened to the girls and who is responsible.

Even when he was asked, he admitted he did play mind games and enjoyed watching police search for clues. Calabrese investigated the Zarzycki case for years and Local 4 spoke with him last year. Officers were supervising a dig for possible cold case homicide victims in Macomb Township. "I think that if he has already killed one young girl, then I wouldn't put it past him. In prison Ream wrote a paper on the disappearance of Zarzycki.

MACOMB TOWNSHIP, Mich. - Police are digging in Macomb Township as part of a search for victims in unsolved homicide cases, and the dig might be connected to convicted killer Arthur Ream, according to authorities. READ: Inside the mind of Arthur Ream, convicted killer writing behind barsZarzycki disappeared April 20, 1986, when he was 13 years old. Ream was convicted of murdering her in 2008, leading investigators to her gravesite, according to authorities. RELATED: More of convicted killer Arthur Ream's prison writingsInvestigators are working with authorities from Warren, Canton Township, Macomb County, Michigan State Police and the FBI. Police said the primary goal of the search is to figure out what happened to the girls and who is responsible.