Most of the Parkland victims were young teenagers, and the Pulse shooting took place in a darkened night club where people might not have been able to tell exactly who was doing the shooting.
At the Pulse, perhaps you are right. But there must have been quite a few near the shooter who could see him when he started shooting. In any case, nobody already at the club tried to stop the shooter.
Parkland - that is a huge school, they must have hundreds of teachers and administrators. And there was actually an armed cop on the campus as well. There were a few teachers who died protecting students (taking a bullet), may God bless their souls.
In terms of students, I think this was a high school so there would have been (estimate) over a thousand teens in the 17-18 age range. 18 is the age at which you can be drafted into the military.
Between the cop, the teachers, the administrators, the 18 year olds, the football team (big strong guys), etc. it seems to me that there should/could have been a response other than doing nothing. And I think in past times, there would have been (e.g. 9/11 examples I used in post #2).
Hence my basic question: Where has the Courage gone?
Courage is one of the holy virtues. We need courage, and sacrifice for many things.
Can we survive as a country without courage? Can we survive as a Church without courage?