Different situations.
In Highland you had a shooter on the roof shooting into the crowd. In Greenwood you had a shooter in the food court.
On the other hand, Elisjsha Dicken shot his opponent with a pistol from 40 yards and hit him with 8 out of 10 shots. That is really good shooting. He might very well have been able to engage Crimo.
He might well have forced him to keep his head down, at least.
Yes, they are different situations.
Does the fact that Highland Park involved a guy in a sniper position on a roof, negate the fact that a good guy with a gun stopped a slaughter in that mall in Indiana?
Why is Dick Durbin even eliciting such testimony from her, to get her to say that a good guy with a gun would not have been able to stop the Highland Park massacre? We will never know for sure, but even if true, what does that have to do with the concept, that a good man on scene can stop a madman bent on destruction?
CSGO players go for head shots. Grandpa probably trained him center mass. Between the two he would have saved many from the roof shooter. You are not thinking of the adrenaline a player feels and that of someone without muscle memory. Eli did awesome in the mall and I believe he would have done awesome there. A few more killed I am sure, but head popped up to aim he would have shot him between the eyes. You need to practice at the range, but the adrenaline... it works out gaming. No jitter. If you can shoot, you are steady.
Different situations.