Meghan Brown had fired her pink .38-caliber handgun only inside a shooting range. Even there, she said, she wasn't very good. The 2009 Miss Tierra Verde, 25 and a slender brunet, had trouble pulling back the trigger. When she did manage, she said she almost never hit the target. That Saturday was different. A man barged into her home, attacking her and beating her fiance. Adrenaline pumping, she fetched the gun from her bedroom. She trained it on the man, following his movements as he tussled with her fiance. She saw an opening. She pulled the trigger. Pop. Pop. Pop....