1 - How about you begin actually looking at what was presented, before you decide your intelligent enough to comment on it.
2 - OH, really. Please tell me how many would be able to leave the room he's in?
3 - What makes you think that : a-anyone would be firing back, b-what bedlam are you suggesting, c-why wouldn't someone have another magazine at the ready, d-are you suggesting that teachers are going to wait and guess someone is reloading and then telling the children to run.
4 - "reading" what target?? From what I've heard, the shooter was either just firing in the direction of groups or walking through the room and picking off targets, as they tried to hide.
Lot's of misconceptions in your projection.
And none of you're or Jade's ASSumptions or ASSertions have provided any proof; because it's nothing but speculation and FEELS.