The daughters of Mark Carroll, a 55-year-old man who was stabbed to death in a London park in April 2024, have called for a full review of how authorities handled his killer, Rasheed Rahman. They described there were "critical failings" in the way police and care services dealt with Rahman, which they believe contributed to the attack. Rahman, who was 19 at the time, used a knife he had taken from his supported living accommodation to stab Mr. Carroll in the back while he was walking with a friend in St Martin’s Gardens, Camden. Rahman was sentenced to life in prison last week for the murder, as well as for a previous stabbing in Romford and a series of public order offenses in the days leading up to the attack. Ayisha Carroll and Danielle Morley, Mark’s two daughters, are raising money to fund a headstone to honor their father, who they described as a "beloved father, grandfather, and friend of many." Ayisha, who is an ecologist, has been struggling with her mental health since her father’s death and is saving every spare penny to cover the costs of the gravestone. In an appeal for help, the daughters said: "We both tried to save. We both tried to cope. We both tried to manage the trauma. But the truth is: we can’t do this alone." In a statement shared with The Independent after Rahman’s sentencing, the daughters thanked the lawyers, judge, and police who helped secure justice, but added that the sentence does not bring their father back. They called the attack "unprovoked" and expressed concern that Rahman had been repeatedly arrested and released in the days before the murder. They also said they were disappointed that the provider of Rahman’s supported living accommodation, Soaring Heights, had not responded to their questions about how he was managed in the weeks before the attack. They asked why Rahman was allowed to be released into the public and why the police were not informed of his disappearance with a knife from the facility in the 24 hours before the murder. Chris Philp, the shadow home secretary, said Mark Carroll should still be alive today and that his family deserve answers about the failures that led to his murder. He referenced similar cases where public services failed to act on warning signs, and urged the government to review the handling of this case. Soaring Heights Care, the organization where Rahman was staying, said they were not automatically informed of all aspects of his personal circumstances, including previous arrests, unless such information was formally shared with them. They added that Rahman did not display any behavior that raised concerns about his safety during his time at the facility. They said if they had known about his criminal history, they would have ended his placement. The Metropolitan Police said they are reviewing their processes and have made some changes based on a critical incident review.