Baltimore City Police are hoping you can identify a man wanted for an attempted armed robbery at Collector's Corner comic book store.

Surveillance video inside the store shows the man. It looks like, at first, that he's shopping. But after a few minutes inside the store the man showed a store employee a handgun and demanded cash. The employee refused to hand over any money and pushed the man out of the store. That's when he left, heading southbound on Charles Street.

City police believe the man is responsible for other commercial robberies in the area.

You can submit an anonymous tip by calling Metro Crime Stoppers at 1-866-7-LOCKUP.

Download the ABC2 News app for the iPhone, Kindle and Android.