Paul McCauley was left brain damaged and died last June
A man has been arrested in the North over the murder of a father attacked at a BBQ nine years ago.
38-year-old Paul McCauley had been left brain damaged after he was assaulted in the summer of 2006 on the Chapel Road in Derry.
The police launched a murder inquiry when he died from his injuries last June.
More than a dozen people have been arrested so far - with one person charged with murder and another reported to the Public Prosecution Service.
The latest man to be arrested is a 28-year-old from Belfast.