In the evening of 18 September 2021, Damien Bendall murdered his partner Terri Haris, her two children Lacey and John-Paul Bennet, as well as Lacey's friend Connie Gent at a residential property on Chandos Crescent in Killamarsh, Derbyshire, an outer suburb of Sheffield, South Yorkshire.

[5] Based on phone evidence, it is estimated that the murder spree had occurred shortly after 21:42 local time on 18 September 2021.

According to prosecutors, at that time, the children were preparing to go to bed while Bendall was trying to contact his drug dealer for cocaine.

[6] Police officers from the Derbyshire Constabulary attended to reports of a disturbance at a residential property on Chandos Crescent, close to Killamarsh town centre, at 07:26 local time on 19 September 2021.

Arriving at the property at 07:39, officers found Bendall outside, with self-inflicted stab wounds on his chest and stomach from a bread knife.