Detectives from the Homicide Squad are continuing to investigate after a man was located deceased in Cowes on Monday.
Police were initially called to a property at the intersection of Church Street and Justice Road about 10.20am on 7 April to conduct a welfare check.
The body of an 86-year-old Cowes man was subsequently located inside the home.
Shortly before, a 55-year-old Ventnor man was arrested at a property on Ventnor Beach Road in Ventnor Beach Road also following a welfare check.
He had sustained a number of injuries that are believed to have been self inflicted and was taken to hospital under police guard.
The two men are known to each other.
A post mortem examination was conducted yesterday and the cause of the 86-year-old man's death remains unknown.
The 55-year-old man was released last night without charge.
The exact circumstances regarding the death are still unknown and the investigation is ongoing.
Anyone with further information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report at www.crimestoppers.com.au
