The FBI said it now believes that no-one else was involved in the deadly New Orleans attack on New Year's Day, other than Shamsud-Din Jabbar.br br Earlier, US authorities said they believed multiple people were involved in the incident which killed 15 people, including the suspect.br br The victims include an aspiring nurse and a mother of a four-year-old.br br The FBI also said there is currently "no definitive link" with the explosion of a Tesla Cybertruck outside the Trump Hotel in Las Vegas hours later.br br Subscribe here: br For more news, analysis and features visit: www.bbc.