There&rsquo;s nothing like senseless violence and destruction to bring out the worst in people. And less frequently, the best. On the one hand, we have Alex Prochazkas, a.k.a. Alex Pro, professional mountain biker and daredevil skier. That&rsquo;s him doing a back flip off an 80-foot cliff. But the flip he&rsquo;ll probably be remembered for is [...]