like Orlando. Like Umpqua Community College, San Bernandeno, Columbine, Newtown...Nope. Most active shooter situations are not stopped by swat teams they're stopped by the first cop that gets there.
Gresham high school was stopped by the first cop that got there but he cornered the shooter into a bathroom stall. The cop had a rifle. Not the same role as an CCW armed citizen at all.