A man who spent two years in a coma after being attacked on his doorstep in a dispute over a barking dog has died.
Matthew Sheehan, 36, died in hospital last week, more than two years after he was assaulted by Raymond Burrell outside his home in Adamsdown, Cardiff, in September 2015.
Burrell was jailed for life in April last year and ordered to serve a minimum of eight years after being convicted of causing grievous bodily harm with intent. He was cleared of attempted murder.
Cardiff Crown Court heard Burrell had been annoyed by Mr Sheehan complaining about his cross-Staffordshire bull terrier's barking.
Burrell had previously served seven years for shooting dead his 17-year-old girlfriend Amie Miles in 2002.
He admitted manslaughter after saying his gun went off by accident.
A South Wales Police spokesman said: "We are aware of the sad passing of Matthew Sheehan on November 9 at the University Hospital of Wales, Cardiff.
"The South Wales Police major investigation team is now liaising with Mr Sheehan's family, the Crown Prosecution Service and HM Coroner in respect of his death."