Police were called to a report of a concern for the welfare of a male in a property on Edgbaston Drive, Old Trafford on 20 July at around 9.30am.
Officers attended and a man in his 80’s was found dead at the scene.
A 51-year-old man has since been arrested on suspicion of murder. He remains in custody for questioning.
Police cars were still seen in the car park this morning as an investigation as to how the elderly man died gets underway.