The man has been jailed after a support worker was stabbed to death in his home in Sutton.
42-year-old Penina Kabeba, better known as Penny, received multiple stab wounds at her home in Park Road, Cheem in May last year.
Neighbors alerted the police to a mother working with people with learning disabilities. He was later declared brought dead at the scene.
Mohsin Saadi, 57, was sentenced to a minimum of 18 years in prison at Kingston Crown Court on Friday after being found guilty of murder.
Reports at the time of the murder stated that Saadi was a occupant at Kabeba’s house.
Detective Sergeant Mark Gadd called Saadi a “despicable person” for committing such “stupidly unnecessary violence”.
“Saadi is a lowly man who took Penny’s life in an act of senseless violence.
“I know this has been an incredibly difficult time for Penny’s family and friends, but I hope Saadi now spends a lot of time in prison to find some peace.
“I would like to commend Penny’s neighbors who came to her aid and were of great help to the police by chasing her assailant that led to her arrest – their action was instrumental in enabling us to arrest her expeditiously.”