A tourist pulled from the wreckage of a fiery helicopter crash in the Grand Canyon died from his injuries Thursday, per Nevada authorities. The Clark County coroner confirmed in a statement that 31-year-old Neil Udall (also IDed as Jonathan Udall) died at University Medical Center of Southern Nevada, the AP reports. He'd been with a group of fellow Brits visiting Las Vegas when a sightseeing helicopter they were flying in crashed in part of the Grand Canyon on Feb. 10. Three of Udall's friends died. Udall was one of four people, including the pilot, hospitalized after the crash. The crash killed veterinary receptionist Becky Dobson, 27; her boyfriend, Stuart Hill, a 30-year-old car salesman; and his brother, Jason Hill, a 32-year-old lawyer. The friends, who were in Las Vegas to celebrate Stuart Hill's birthday, opted to take a Grand Canyon sightseeing helicopter tour on tribal land.
Unlike the more tightly regulated air tours within Grand Canyon National Park, helicopters quickly deposit tourists on the Hualapai reservation and within the canyon for lunches, hikes, or pontoon boat rides, then whisk them away. In peak season, the reservation has 350 to 400 flights per day, per the FAA. A preliminary report released Wednesday says the helicopter made at least two 360-degree turns before crashing, but the NTSB doesn't say what caused the crash. A full report won't be completed for more than a year. The other survivors are the 42-year-old pilot, Scott Booth; Ellie Milward, 29, newly married to Udall; and Jennifer Barham, 39. A hospital spokesman says all three remained in critical condition Thursday.