Photo by Michael McClureEd KendrickWe told you about local dentist Ed Kendrick a couple years ago, when former Pitch staff writer Ben Paynter wrote about the metro's 9/11 conspiracy theorists ("Bush Blew Up the Twin Towers," November 23, 2006). Some of those theorists were sure the attack was Biblically-ordained. Others didn't mind if people called them "retards" as long as the theories were getting out. Kendrick's thing was to put his patients through a Power Point pres