Police are due to release more details of their investigation into the murder of a top banking executive who died after he intervened in a street fight.
Frank McGarahan, 45, chief operating officer of Barclays Wealth, attempted to break up a brawl in Norwich city centre at 3am on Sunday.
Norfolk Police said Mr McGarahan, of Hertfordshire, had enjoyed a "quiet evening out" before the attack as he visited the city to attend a family christening.
He died on Monday in Addenbrooke's Hospital, Cambridge, after suffering head injuries.
"Mr McGarahan was spending a quiet evening out with family and friends ahead of a family christening in Norwich on Sunday when he witnessed an assault while queuing for a taxi on Guildhall Hill, after which he sustained a fatal injury," said a Norfolk Police spokesman.
"The investigation into the incident continues and officers are reviewing closed circuit television footage from around the city centre area and following up a number of lines of inquiry."
Norfolk Police will hold a press conference following Mr McGarahan's death at which they are expected to release more details.
A Barclays spokeswoman confirmed Mr McGarahan was chief operating officer of Barclays Wealth, which employs 7,700 staff in 20 countries and manages assets worth £133 billion.
Police said post-mortem tests would be carried out during Tuesday.
Detective Superintendent Chris Hobley said: "Norwich City Centre is generally a safe place and there were a number of people in the vicinity of the incident. We are very keen to hear from anyone who may have seen something or has any information."
