The teacher was shot in the arm by the shooter. His lung was pierced by the second shot, this one in the back.

"I had no idea how long it was," he said. It feels like forever when things go wrong. I can only say that my blood was very large.

Police entered the classroom more than an hour after the shooting began, and all 11 students were dead.

I feel bad for the parents because they lost a child. One child died. I lost 11 people that day.

Robb Elementary had practiced with active shooting drills just a few weeks prior to the event. Not everything went according to plan He didn't get an emergency alert on his phone from the school district, and his classroom door wasn't fixed that day, despite his complaints.

Even if the school followed every protocol, there was nothing they could have done to prevent the massacre.

The Uvalde police have come under fire for their response to the shooting. The officers waited more than an hour to confront the man because they thought all the children had already died. Several children called for help from inside the classroom.

Videos show police shoving terrified parents as they begged officers to enter the school to save their children. In one video, a parent can be heard asking why police aren't saving their children, to which an officer replied, "Because I'm having to deal with you!"

Angeli Gmez told CBS News that she was handcuffed by police when she tried to save her sons. She said she jumped a fence and ran inside to get them out of harms way. Gmez said she was warned not to speak about her experience to the media.

The wrong decision not to confront the shooter earlier was made by law enforcement officials. The police response will be reviewed by the department of justice.

Two weeks have passed since the shooting and Reyes is still recovering. He wants to push for gun control laws that would prevent tragedies like this from happening more often.

If you want to own a gun, that's fine, he said. The age limit needs to be changed. They need to do more background checks on it.

He said that he wouldn't let his coworkers die in vain. I will go to the end of the world to change it. I will do it if that is what I have to do for the rest of my life.