An off-duty police officer is among the injured and one person is dead after a shooting at Union Station in Dallas. Charles Bassett is at the live crime scene at the corner of Houston & Wood with these details so far: Dallas police are investigating the shooting which occurred between 3:30 and 4:00 pm at Union station. The shooting happened on board an Amtrak train stopped at the station. DART officials are on the scene as well, along with a lot of stranded passengers still trying to get to their destinations. Trains are once again running at the station. DART...