They really mean it:
So now, if you're only holding the parts of a firearm you're subject to being shot.
"[Officer Gilette] approached on foot on the driver's side, moved around the vehicle to the passenger side of the vehicle," Captain Rod Light, of the Yakima Police Department, told KNDO. "Opened the door, discovered the suspect was armed with a handgun."
However, it wasn't actually a handgun.
In reality, Arias was holding a disassembled Airsoft gun, which shoes soft plastic pellets, that he was trying to put together.
Is it time yet?