A Texas lawyer was shot and killed outside a McDonald's after trying to calm down an angry customer, police say.Jeffrey Limmer, 46, died after the incident in Houston on Saturday evening and his attacker fled the scene in a pickup truck. The customer was upset with employees over his order and demanded a refund. Mr Limmer tried to calm them down, according to local news outlet ABC13.Police say the fight went outside and Mr Limmer pushed the customer to the ground.The customer then went to his car and pulled ...