Stephen Parish, 56, is suspected of carrying out armed holdups at convenience stores in Grantville, Kearny Mesa and University City from March 10-13.In surveillance video taken inside a Shell Station at Clairemont Mesa Boulevard and Convoy Street, a man with a red beard wearing a black hooded sweatshirt and sunglasses pulls a gun on a clerk and demands money.After the clerk puts the bills on the counter, the man grabs the money but places the gun on the counter.In a split-second, a clerk grabs the gun and points it at the man. The man is seen running out of the store, being chased by the clerk."He actually was wrestled to the ground by a very brave store clerk and that's when he got into the car," said SDPD Lt. Andra Brown.The clerk was able to provide police with a good description of the car, and in the struggle the man left his sweatshirt and gun behind.Police said the gun turned out to be a replica.Using several tips from the public and the surveillance video, police identified Parish as the suspect and arrested him one month after his final robbery during a traffic stop."In that case, he did actually have in his possession a real firearm and real live ammunition and he was under the influence as well," said Brown.10News returned to the Shell Station to talk with the clerk but learned he no longer worked there.Parish is being held at the San Diego Central Jail. He faces charges including five counts of robbery and two counts of being under the influence of a controlled substance.Parish's bail was set at $520,000.