Once again, if you wait 24hrs and quit believing every breaking news story, you'll find it's usually a totally different circumstance.
“Once through the gate, the victims advised the group that they were on a private street and trespassing and told them to leave,” the police summary further states. “The group began yelling obscenities and threats of harm to both victims. When the victims observed multiple subjects who were armed, they then armed themselves and contacted police.”
So, the "victims" went outside, saw an armed mob, excused themselves, and while the mob politely waited, they went into the house grabbing their armaments (a semiautomatic?!) and returned to continue the discussion? And the mob just stood there waiting for them to return?
Why does this story sound a bit, er...