I guess it's as much of the video as possible? Next thing was the shooter getting popped.
Why? His wife got fired. His unemploment ran out. He was mad about higher taxes (why? He was unemployed, duh). This is so, the product of Glen Bleak, Hannitduh and Rush Lamebaugh.
Then the "SWAT Team" shows up and breaks all protocols by not securing the room...