4 minutes goes by very, VERY quickly when you're under duress.
I'd like to know exactly what his standing orders were, and what his training was like, before I judge. Regardless of what the news puts out, the chance of a school shooting at any particular school is very low, and if training/orders weren't robust/clear, then he was setup to fail.
What would be worse is if some of the other innocent students had been killed by this deputy, either as collateral damage in a shoot-out or due to his nerves getting the best of him, say, when a student darts into view and appears to be a threat evaluated too late.
This couldn't be further from the truth. Unless you have frontline experience, it's impossible for civilians to interpret life threatening situations.
What I posted was my opinion, based on my own experiences. It literally cannot be closer to the truth.
I've never been on the front line, weapon in hand, and I never implied this. However, I have been in situations where danger and stress were high. Heck, even in drills (fire and emergency, abandon ship, active shooter, etc.) your blood is pumping and your brain pushes toward fight-or-flight mode; only your training keeps your thoughts mostly straight, or at least straight enough to complete the job/drill/task.
I'm one of the guys on the phone for emergency response drills (one of my secondary responsibilities) and when people put on SCBA's or EAB's and things are being thrown at you quickly, communication sucks and mistakes are made, and people CAN make the wrong decision by doing what they think is the right or brave thing to do.
The rest of my post was hypothetical, neither true nor false. I'm wondering why he froze up. Was it a training issue; was he confused by the information he had; was he a coward; or was he confused about his rules of engagement. I'm telling you right now that, based on my experience, people who are poorly trained tend to make the situation worse. It doesn't matter what is said by the media; only this guy knows exactly why he did what he did.
Worst case, he could have entered the building and, being so nervous, shot an innocent kid (s) and never even seen the perpetrator. Again, this is hypothetical, not fact... I do NOT know his level of training, nor his temperament or valor.