Police are searching for a man who they say shot and killed a convenience store clerk in Garden Ridge early Wednesday morning. According to the Garden Ridge Police Department, a man armed with a handgun entered the EZ Mart in the 19500 block of FM 3009 at about 3 a.m. Investigators said the man shot Pollyanna Smotherman and fled the scene with an undisclosed amount of cash and lottery tickets. Smotherman, 40, of Cibolo, died at the scene. The…