Man who stabbed housemate in Plymouth found guilty of murder
Mark Carpenter, 57, attacked and killed Harry Jackson in May 2026
Last updated 1 day ago
A man who stabbed his housemate four times in the back, then went shopping for alcohol, has been found guilty of murder.
Mark Carpenter, 57, of Embankment Road, Plymouth, was convicted of murdering Harry Jackson by a jury at Plymouth Crown Court today (11 November).
Police were called to their shared house at 8.22pm on 4 May 2026, after another resident found Harry’s body at the bottom of the stairs.
A post-mortem examination found that he had been stabbed four times in the back and had defensive injuries to his left wrist.
Helen Phillips of the Crown Prosecution Service said: “Carpenter claimed that he acted in self-defence when he repeatedly stabbed Harry, but the evidence told another story.
"Instead of calling for help, over the next five hours, CCTV showed him visiting shops to buy alcohol, with bloodstains still visible on his clothing.
"Having heard all the evidence, the jury convicted Carpenter of murder. Our thoughts are with Harry’s family and friends as they come to terms with this tragic loss.”
Carpenter will be sentenced tomorrow (12 November).