The best friend of a woman murdered by her ex said she has to live everyday with the failings which led to her death.
Mark Morris was jailed for life in December 2017 for the brutal stabbing of tragic Emma Day who was the mother of his child.
The 33-year-old NHS worker had been struggling for money following years of coercive behaviour by Morris, who had manipulated her financially, the Centre for Women's Justice have said.
Heartbroken friend Sallie Clarke held Emma in her arms as she died following the knife attack in a busy West Norwood street, south London seven months earlier.
An inquest into her death last month found there "systematic failures" in the handing of the domestic abuse.
Sallie said: "There were failings in handling, and Emma may still be here if it was handled properly. I live that day everyday."
An inquest found the Child Maintenance Service had failed to disclose a sick death threat by Morris to the police.
Emma had been locked in a vicious battle over financial support for their daughter.
Morris failed to shell out and threatened to kill her unless she cancelled the £2,000 a year claim, the Old Bailey trial heard in 2017.
The inquest also revealed how the young mum was passed between police forces in South London after attempting to report the domestic abuse.
Police also failed to pursue a criminal case against Morris after a non-molestation order was put in place limiting his contact with both mother and child.
But Ms Day failed to renew the order due to a lack of funds and failed to qualify for legal aid.
Senior coroner Andrew Harris found systematic failure in the Child Maintenance Service's handling reports of domestic violence and a lack of a system in place to deal with concerns of potentially fatal domestic violence triggered by applications for maintenance.
The coroner also found a different outcome could have been reached if the initial death threat had been reported to the police.
Harriet Wistrich, director of Centre for Women's Justice said on Friday: "This is yet another femicide that might have been prevented if better systems for responding to allegations of domestic abuse were in place.
"We hope that learning from this tragic outcome can help prevent future deaths, and there will be adequate resourcing to institute a national femicide oversight mechanism through the Domestic Abuse Commissioner's office."
