Jane Wheatley (34) and Gary Gardiner (46) were both found stabbed to death at her home in Sheffield on 5 November (Guy Fawkes night). Police were called to a disturbance at the house and made the discovery, arresting 51yo David Mirfin at the scene. Ms Wheatley has a three year old son (unconfirmed, but reported he was in the home at the time).
It appears that Ms Wheatley had separated from her partner (probably Mirfin) about a year before, and had since started a relationship with Mr Gardiner. There had been frequent disturbances at the premises involving the three of them. It is unknown if Mirfin is the father of the three year old boy.