Christopher Donnelly, 54, of Samara Drive in Southall, pleaded guilty at Southwark Crown Court on Monday, October 19, to the murder of 66-year-old Michael O'Donnell. The Metropolitan Police described Donnelly as a “master manipulator” who coercively controlled his victim for years before stabbing him to death in his own home.
Years of exploitation and theft
The court heard how Donnelly spent years exploiting Michael, moving into his home and stealing thousands of pounds before carrying out the fatal attack. After the murder, Donnelly attempted to conceal his crime by hiding Michael's body under a mattress and piles of rubbish at the property.
The Metropolitan Police launched an investigation on April 23 last year after officers and ambulance paramedics were called to Samara Drive over concerns for Michael's welfare. Upon entering the property, officers discovered Michael's body, and it was later confirmed that he had died several weeks earlier.
Investigation and arrest
Further enquiries revealed that Donnelly had been living at the address, leading to his arrest on suspicion of murder later that day. At the time of his arrest, he was found in possession of three bank cards and a bus pass belonging to Michael. Donnelly was subsequently charged on Monday, April 28, 2025, with murder and fraud by false representation.
Despite Donnelly's attempts to hide his crimes, Scotland Yard pieced together a timeline of events using CCTV footage, financial records, and witness accounts. Forensic experts also used insect and larvae evidence found at the property to estimate when Michael died. Police say that after the murder, Donnelly continued to visit the house and used the victim's bank card to pay for gambling, sex workers, and drugs.
Police statement and sentencing
Detective Chief Inspector Brian Howie, who led the investigation, said: “The facts of this case reveal a level of violence and callousness that is difficult to comprehend. The victim was attacked in the place where he should have felt safest, by someone who sought to exert control and exploit him for his own gain.”
He added: “Following the murder, the defendant made deliberate efforts to conceal both his crimes and Michael's body - actions that were calculated, inhumane and deeply distressing. Michael was denied the dignity and respect he deserved, and his family were forced to endure unimaginable anguish.”
Howie continued: “Tackling serious violence in all its forms remains one of the Met’s key priorities, and we are committed to bringing those responsible for the most harmful offences before the courts. I hope today's guilty plea provides Michael’s family with a measure of justice and allows them to begin to move forward.”
Donnelly will be sentenced at Southwark Crown Court on Friday, December 11.
