08/08/2012 06:06 pm ET

Cicero Jewelry Store Robbery Caught On Surveillance Camera, Thanks To Heroic Pup (VIDEO)

Five suspects may have successfully made off with more than $40,000 worth of jewelry, but police say they're confident the men will be caught thanks to the heroics of the store owner's French Mastiff, Max.

Four men entered the Roosevelt Gold Exchange in Cicero, Ill. around 1:30 p.m. Monday while a fifth acted as a lookout, the Chicago Tribune reports. While two suspects spoke to an employee through protective glass, another broke into the store from the back entrance and attacked the clerk from behind.

"They have a crowbar in their hand, and they're telling him they're going to kill him. It's terrible," Cicero Town Spokesperson Ray Hanania told ABC Chicago.

The intruders bound the clerk with a phone line they wrapped around his neck, put a bag over his head and beat him, according to NBC Chicago. They then loaded up about $40,000 worth of jewelry and went looking for the security footage that included shots of their faces.

But when the suspects headed for the back room to steal surveillance tapes that captured the incident, owner Louie Rainone's 110-pound French Mastiff "went at 'em," Rainone told CBS Chicago. "Every dog has their day," he told the station. "Yesterday was Max's. Tomorrow it will be their day."

Investigators are asking the public to help identify the men (see the full surveillance footage below), whose faces are clearly captured on the security footage, the Chicago Sun-Times reports. When captured, the men will face armed robbery and aggravated battery charges.

Anyone with information about the suspects should call Cicero Police Detective Joe Melone at 708-265-2130.