Maine authorities are investigating the death of an elderly man who was found floating in a lake in Raymond. The Cumberland County Sheriff’s Department says 87-year-old William Prouty of New Hartford, Conn., was found by his wife around 9:25 a.m. Thursday. The family owns a seasonal home on a small island in the lake. Officials say Prouty left the island to meet a maintenance worker on the mainland. Authorities say his wife found his body after he didn’t return. The death is not considered suspicious. The cause and manner of death will be determined by the medical examiner’s office.