Diane Cusack was a 55-year-old White woman last seen in late summer or early fall 2003 in New Britain, Connecticut. She was out of contact with her family for years and was not officially reported missing. On August 20, 2007, skeletal remains were found in a wooded, swampy area behind a shopping mall on Hartford Road; a subsequent search of the fifteen-acre site uncovered the remains of three women. Identification took time because of the condition of the remains, and in December 2010 some of the remains were positively identified as belonging to Diane Cusack.

Investigators later determined Cusack was among multiple victims killed by the same offender. The suspect identified by law enforcement was William Devin Howell, who had a history of violence and was already incarcerated for the manslaughter of Nilsa Arizmendi. Court documents say Howell confessed to fellow inmates and referred to his van as the murder mobile. In September 2015 he was charged in the New Britain killings and in 2017 he pleaded guilty to the murders of six women, including Cusack, receiving six consecutive life sentences.

Did anyone who knew Diane in New Britain during 2003 ever notice when she stopped being seen in the downtown neighborhood?