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Man 'stabbed stepdaughter and her husband to death' after 'losing it'

Derek Martin, claiming diminished responsibility due to depressive disorder, admitted manslaughter after stabbing his stepdaughter and her husband to death, then surrendering to police.

  • On June 9, 2023, Derek Martin, 67, killed his stepdaughter Chloe Bashford, 30, and her husband Josh Bashford, 33, at their Newhaven home and admitted manslaughter but denies murder.
  • At Brighton Law Courts, lawyers outlined Derek Martin's long psychiatric history, including a depressive disorder diagnosis, history of being sectioned, and stopping medication five months before the killings.
  • At about 12:16 prosecutors say Derek Martin hit Chloe Bashford, 30, with a hammer, stabbed her eight times, then at about 12:20 ambushed Josh Bashford, 33, stabbing and ligaturing him before removing evidence and surrendering at Brighton police station.
  • The court was told the trial will run for three weeks, with jurors hearing there is `no dispute` Martin killed the couple and Prosecutor Julian Evans saying `They argued and had 'a bit of a screaming match'`.
  • Family members described Derek Martin, 67, as a `grandfather figure` who was `easy to be around` but had a `bad temper`, and the killings left the couple's four children affected.
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perspectivemedia.com broke the news in on Monday, October 6, 2025.
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