Skier Dies Throwing Double Backflip Into Lake in Utah 23-year-old skier Matt Heffernan died while cliff jumping at Causey Dam, east of Salt Lake City, Utah on Friday. Matt was drifting on tubes with 2 friends through the reservoir and intermittently stopping jumping off cliffs on the edge of the lake. Matt had jumped off a cliff for the fifth time. He attempted a double backflip and landed in the water face first and did not return to the surface. Matt’s friends jumped in after him but we unable to […] Cliff Jumping SnowBrains | August 16, 2015 6 Comments