Police name sixth insulin victim Police have named a sixth person believed to have died after being "deliberately poisoned with insulin" at a hospital in Greater Manchester. 73-year-old John Beeley is the latest person named by police investigating the suspicious deaths of patients at Stepping Hill Hospital in Stockport. Tracey Arden, Arnold Lancaster, Derek Weaver, William Dickson and Linda McDonagh were also among 21 people believed to have been unlawfully administered insulin at Stepping Hill between June and July 2011. Detective Superintendent Simon Barraclough said: "It is really important that we differentiate between the deaths of Tracey Arden, Arnold Lancaster and Derek Weaver - who died shortly after being poisoned - and the three subsequent deaths. We believe insulin may have played more than a minimal part in the deaths of Tracy, Arnold and Derek. While we are continuing to undertake stringent tests into the deaths of all six patients, we believe that it is highly likely the later deaths should more properly be attributed to natural disease.