From jumpers with Suppa one who was below and another at the exit point during incident- The group had been in Arizona, jumping some legal cliffs for a few days. On day 5, Suppa went first. The winds were reported to be close to calm, or they were in the wind shadow of a 4-5mph crosswind. Suppa took 1 second delay, stowed, in a flat and stable body position. The opening was a 180 with a half-linetwist, canopy flying towards the cliff. The first cliff strike was hard and the smack was heard clearly by the jumpers up top and below. Suppa was still facing forward and this strike was on his back and possibly back of his head; Suppa was wearing a skydiving helment for this jump. The second stike came after he had come out of the half twist and was head on. The strikes caused large boulders to be dislodged from the cliff and the combination of talus angle and destruction to the canopy caused it to collapse leave Suppa on the talus. The two jumpers above jumped down and landed by him for assistance. One jumper had recently gone through EMT training (a good idea for all of us) and began to assess his friend's situation. Rescue and paramedics were called in but Suppa died during extraction from major trauma. Chad was a well respected federal Wildland Firefighter.