Gardai are investigating the suspicious death of an elderly man in Co Sligo.The 83-year0old man's body was found last night in an upstairs bedroom of his home. A Garda Technical team went to the scene and the assistant State Pathologist, Dr Maire Cassidy, is due there today. An incident room has been set up in Charlestown and gardai are requesting information from the public at (094) 54104.