http://www.cbsnews.com/news/oregon-man-on-horse-lassoes-would-be-bicycle-thief/(...) Victorino Arellano-Sanchez, 23 attempted to steal a mountain bicycle outside of a local Walmart store when people in the parking lot began shouting and calling attention to the theft.
Witnesses referred to the hero as the "Lone Ranger." His name is Robert Borba.
(...)
Borba chased after the thief on horse, who was fleeing, and lassoed the suspect, holding him down until local police arrived.