MIDDLETOWN - The five people who died in the Kleen Energy plant explosion on Sunday included three Connecticut residents, as well as one man from Missouri and one from Canada. Peter Chetulis of Thomaston; Chris Walters of Florissant, Missouri, and Roy Rushton of Hamilton, Ontario, Canada, were killed in the blast, according to a release from the Middletown Police Department. Colchester resident Ronald Crabb, 42, and Old Saybrook resident Raymond E. Dobratz, 58, were also killed. Crabb and Dobratz worked as pipefitters. It was unclear what jobs the other men held. The cause of death was undetermined, the release states....