The Ethical Standards Command (ESC) is investigating the death of a man at the Brisbane City Watchhouse on 20 July. A 55-year-old Thornlands man was arrested at a Thornlands residence at 10.50am on 17 July in relation to a return to prison warrant and was transported to the Brisbane City Watchhouse. Shortly after 3pm on 20 July, the man advised he was feeling unwell and was assessed by nursing staff and other emergency services. The man became u…