Seems unlikely that a cannonball could go through a wall, fly(?)/roll for two miles, bounce
up a flight of stairs (as opposed to just crashing through?) and still have enough energy to go through another wall. Can't imagine anyone on Mythbusters or the Sherrif's office ever expected something like that could happen.
Can't wait to see this episode!
Also, reading that article, all I could think of was how big a d-bag the author is.