When a shabbily dressed man ran out of a Westfield Annapolis jewelry store followed by an employee screaming for help, Erik McInnis didn't think twice. "Anybody sprinting out of a store like that is guilty until proven innocent," the 39-year-old Marine major said. He immediately left his two children, ages 9 and 2, in the mall's play area and chased Timothy A. Laboard, 40, of Baltimore, through the back corridors of the mall. Jonathan Neff, another father in the play area, said Maj. McInnis "hurdled the row of seats and hit the ground at an all out sprint behind the...