At a Kroger in Lemon Township, dad Deshawn Pressley, 27, with his 1-year-old daughter, was having a pleasant conversation with elderly neighbor Pat Goins, 87, just moments before the mugging occurred. While Goins was in the checkout, a male assailant swiped her purse and took off—not just to her own dismay but also to that of concerned bystanders, who ran after the thief. Pressley, from the adjacent aisle, saw the suspect, 58-year-old Derek Vaughn, fleeing toward the exit and heard Goins’s cry for help, “He stole my purse!” and was soon hot on the man’s heels. A much faster runner than Vaughn and the other shoppers, Pressley caught up with him in the parking lot and quickly took him to the ground, pinning him. “I chased him down, got him—he got to his car and everything, but I grabbed him, held him to the floor, got him down, did what …