I'm sure the FBI and the BATF know.
Were they just practice for something larger?
*I* don't think so.I think it was nothing more that what it appeared to be,feral police that are out of control and in full "closet commando" mindset.
Maybe a now retired Lon Horiuchi is out to hone his skills.
I don't think he is retired. Last I heard,he was working as a instructor at Quantico. Besides,none of the shooting done so far has required any special shooting skills. The average person who has never shot a gun in his life could hit a torso-sized area on a human target at 100 yards with a properly zeroed rifle.
Remember that story?