Judge tells killer he will spend life behind bars
Mark Hobson, 35, admitted the murder of his girlfriend Claire Sanderson, 27, and her sister Diane at his flat in Camblesforth, North Yorkshire, and killing pensioners Joan and James Britton at their home near York.
At Leeds Crown Court, Mr Justice Grigson sentenced Hobson to life in prison and gave him a âwhole life tariffâ.
As the sentence was read out, the twinsâ mother Jacqueline Sanderson stood up in the public gallery and shouted: âYou bastard. Rot in there. Rot in hell.â
Sentencing Hobson, the judge said: âThe enormity of what youâve done is beyond words.â
Hobson beat Claire Sanderson to death with a hammer before luring her sister Diane to her death a week later. He subjected Diane to horrific sexual mutilation, possibly while she was still alive, before going on the run last July.
He then murdered housebound Mr Britton, 80, and his wife Joan, 82, in their own home, brutally beating them both with Mr Brittonâs walking stick before stabbing them to death.
The court was shown handwritten notes made by Hobson which suggested he had pre-planned the âhorrific and chillingâ murders and was even planning to kill the twinsâ parents.
Mr Sanderson found his daughters wrapped in binbags on July 18 last year.