Detective Chief Superintendent Hoban, of West Yorkshire’s Eastern Crime Area, was assigned to investigate the brutal murder of Wilma McCann. Wilma was brutally murdered on 30th October 1975.
An incident room was established at the former Leeds City Police Headquarters in Brotherton House. It was initially treated as an independent murder and was not linked with the attacks on Olive Smelt and Anna Rogulskyj.
Following the brutal murder of Emily Jackson on 20th January 1976 Detective Chief Superintendent Hoban was assigned her case too. The incident room was set up at Millgarth Police Station.