Bagel heir kills sister and mother after family were ‘terribly failed by the system’

A bagel tycoon’s son battered his mother with a meat tenderising mallet before stabbing her and his sister to death after the family were ‘terribly failed by the system,’ a court heard. Joshua Cohen, 29, was so mentally ill he had been in and out of hospital eight times and sent to jail for attacking family members. But eleven days after his release he killed his sister and mother in the basement of their £2.5 million family home in Golders…