This armed robber was dealt instant justice by a "cowboy" that was in the store he was trying to rob.

At a store in Monterrey, Mexico, a man with a cowboy hat tackles a guy with a guy after he turned his back on the hero.

I think after seeing him take down the would-be robber, it's safe to just go ahead and call him a cowboy...not just a guy in a cowboy hat.

After wrestling with the guy, knocking his gun away, and somehow taking his shirt from him, other people in the store start to help. Eventually the guy is caught by the throat by what appears to be someone who works at the store.