Fredericksburg Police Lieutenant and Former SWAT Commander Bill Hallam says Ex-LA cop Christopher Dorner's past has made him more of a danger.
He says past experience with weapons and a military knowledge of tactical warfare creates more of a threat to the general public.
Hallam says that when there is a barricade situation, the scene is always secured first. SWAT is then called and when they arrive, they take position. Their officers are specially trained and often have bigger shields, different weapons and a better means to closely negotiate with suspects or kidnappers.
In all four people have died and two have been injured in the more than five day rampage and manhunt for Dorner, two of them law enforcement officers.