Edward Pettifer of Chelsea, London, was the stepson of William and Harry's ex-nanny. (Reuters/Metropolitan Police)
In short:
British police have named Edward Pettifer, 31, as one of the 14 victims of the New Orleans terror attack on New Year's Day.
Pettifer was the stepson of Prince William and Prince Harry's former nanny, Tiggy Pettifer.
Prince William says he is "saddened" by the news of his death, while the king has reportedly given his condolences to Pettifer's family.
Prince William has expressed his condolences to the family of one of the victims of the New Orleans terror attack, who was his former nanny's stepson.
On Saturday, British police named Edward Pettifer, 31, as one of the 14 people killed by the truck ramming attack on New Year's Day.
The attack on January 1 was carried out by US army veteran Shamsud-Din Jabbar, who the FBI says pledged loyalty to the Islamic State jihadist group.
Jabbar used a pick-up truck to kill and wound revellers in New Orleans's crowded French Quarter, before being killed by police.
On Saturday, the UK's Press Association reported "the King was … deeply saddened, and had been in touch with the family to share personal condolences".
Prince William also released a statement on the Kensington Palace social media account, saying he and his wife Catherine had also been "shocked and saddened by the tragic death of Ed Pettifer".
"Our thoughts and prayers remain with the Pettifer family and all those innocent people who have been tragically impacted by this horrific attack," he wrote on the couple's Kensington Palace social media account.
Pettifer's half-brother Tom is one of William's godsons and was a page boy at his wedding to Catherine, the Princess of Wales, in 2011.
Bourbon Street is one of New Orleans's biggest destinations on New Year's Eve. (Imagn Images: Stephen Lew)
Tiggy Pettifer, whose family had longstanding links to the royals, was hired as a nanny for William and his younger brother Harry after Charles's separation from their mother, Princess Diana.
"The entire family are devastated at the tragic news of Ed's death in New Orleans. He was a wonderful son, brother, grandson, nephew, and a friend to so many. We will all miss him terribly," the Pettifer family said in a statement.
Bourbon Street, where the attack took place, reopened on Friday, three days after the attack.
AFP/Reuters