LOL

"It's a falicy to believe that more armed people in this bar would have changed the ultimate outcome."
Bullchit.
The guy would have never walked into the bar if others had guns.
He chose the soft target intentionally.
That's what they do.
An equal fight is not an option for them.
That's why they check out when confronted.

"A Sheriff deputy was killed in the line of duty as he stepped in to the place to stop the attack. He was armed, gun drawn, and in the ready. And he failed."
You consider his actions failure???

A) If there would have been 3 cops with guns they would have probably succeeded. More is better.
B) He caused the moron to shoot himself.
C) He had to come through the front door instead of being a random in the crowd.

"guns will be in the hands of law abiding citizens who got their guns legally and are one bad day away from becoming a mass murderer."
This is no joke and very true for the many who were raised to be weak and lack identity.