Police sources identified 45-year-old William Devin Howell as the man suspected of killing all seven individuals

By Tara Fowler
May 12, 2015 01:35 PM

After finding the bodies of seven people behind a shopping center in New Britain, Connecticut, police sources have reportedly identified a single man as their killer.

William Devin Howell, a 45-year-old Connecticut prison inmate currently serving a sentence on unrelated manslaughter charges, is suspected of killing all seven people, an insider familiar with the investigation told NBC.

Police haven’t said publicly whether Howell is a suspect in the murders.

If he is indeed responsible for all the deaths, it would make him one of the state’s most prolific serial killers, rivaling Michael Ross, who was executed in 2005 after he confessed to killing eight women and girls in the 1980s.

Three of the bodies were found in 2007 after a hunter discovered one set of remains in the swampy area behind the shopping plaza. Authorities announced Monday that they’d found four more bodies, CBS reports.

Altogether, four of the victims have been identified. The three discovered in 2007 were identified as 53-year-old Diane Cusack, 23-year-old Joyvaline Martinez and 40-year-old Mary Jane Menard, while one of the newly discovered victims was identified as Melanie Ruth Camilini, a mother of two who was last seen in 2003.

Police are still working to identify the other three sets of remains.

Howell was charged with murder in the death of Nilsa Arizmendi, 33, whose body was never found after she disappeared in 2003. Authorities linked him to her death after they found her blood in his van as well as the blood of another unidentified woman, according to NBC.

He ultimately pleaded guilty to a lesser manslaughter charge after he cut a deal with prosecutors in the case, receiving 15 years in jail.

Want to keep up with the latest crime coverage? Click here to get breaking crime news, ongoing trial coverage and details of intriguing unsolved cases in the True Crime Newsletter.