[youtube=http://www.youtube.com/watch?v=SXwiu18J9H0&w=420&h=315] My brother recently stopped by the tunnel, where I’ve been painting two 100-foot murals for the city of Provo. I knew he had a camera strapped to his chest, but I didn’t know he had been filming the entire time we were talking. Here’s a little taste of the tunnel so far, with another…