Investigators review erratic behaviour of US gunman
WASHINGTON (AP) - Investigators on Thursday focused on the erratic behaviour of a former US Navy reservist whom law enforcement officials say had reported hearing voices before he shot dead 12 people at a military base in Washington this week.
The national conversation turned once again to mental health, and to gun control.
Monday's rampage lasted more than 30 minutes, unusually long for a mass shooting, and the Capitol Police, which protects members of Congress and Congressional buildings, has ordered an investigation into the force's response.
Reports say a tactical response team arrived within minutes and was told by a supervisor to relax its state of alert. The base is less than four kilometres from the Capitol.