A previously unknown BASE jumper in Grand Canyon National Park has been identified as 41 year-old Dr. David Stather of Calgary, Alberta Canada. He was reported missing after attempting a second jump late Friday afternoon, The Associated Press reports.

When Stather didn’t end up where he was supposed to be after his second jump, his friends went looking for him and found his body 2,000 or so feet from the top of the cliff. The Coconino County Sheriff’s Office recovered the body Saturday via helicopter on Saturday.

Stather was wearing the wingsuit/parachute combo popular with BASE jumpers. When used properly, wingsuits can generate a glide ratio in excess of 2.5, meaning for every meter the wearer drops, they move 2.5 meters laterally. Typically, the parachute is deployed at a planned altitude similar to those used by sky divers. It has not been reported whether or not the parachute had been opened, or where failure might have occurred.

Stather was apparently a well-known respiratory therapist and surgeon at the Alberta Health Center in Calgary. According to a biography on the University of Calgary’s website, Stather enjoyed “snowboarding, climbing and a number of other mountain-related activities, for which Calgary’s proximity to the Rocky Mountains makes it an ideal location.”

Beginning in 2003, more traditional BASE jumpers started wearing wingsuits, giving birth to WiSBASE, which involves using the suits to fly very close to the faces of cliffs and mountains. Several people have been severely injured during the practice. On 14 August 2013, Mark Sutton, a British stuntman who had earned fame by parachuting into the 2012 Summer Olympics opening ceremony as James Bond, was killed when he hit a ridge while wing-diving near Martigny, Switzerland.