What makes the robbery foiled?

A Wisconsin bank robber probably wishes he had never thought about attempting his crime. Check this out. He rushes up to the teller, opens a bag, demands money and then waits for the cash, right? (27)Bank customers noticed the ruckus going on and then one of them—I’m trying to watch this with you, and then, there you go, decides to do something about it,he rashes in and he attacks, he actually tackles the suspect, takes him down. (28)Robbery foiled, but the suspect, I don’t know how, got away and police are looking for him.