and elizabeth, buzz yakshe's kids did some pretty incredible things under horrendous conditions.n update on how the victims are doing? >> originally there were about 24 patients sent to the hospital. ten remain, four of whom are in critical condition. some of them are on ventilators and will need more surgery. in the midst of all the saddens there is really incredible stories about teenagers with no training retaining come p inini. nate had the where with all to pull the fire alarm. and he also had the where with all after he was stabbed to take a selfie in the hospital gown. i guess that's what teenagers do. and also brett was in school with his friend, gracy evans. he pushed her out of the way of the assailant and then she took care of him. let's listen to what brett had to say. >> what was going through my mind? will i survive, or will i die? >> your friend saved your life. >> yeah. gracy saved my life. >> now gracy wrote on her facebook page, breath, you saved me. you took a knife for me to protect me. i'm forever grateful for that. i knew i could not leave your side. i know

i started putting pressure on the wound to stop the bleeding or another hero, william yakshe, everybodyids are like my kids. >> he knows he's in a world of stuff right now and how serious it is and he can't believe he did this. >> reporter: hribal, he says, remembers everything. >> of course he remembers doing it. he did it. this is not a who dunn it. this is a question of why? >> reporter: saying hribal targeted no one specifically. his lawyer hinted bullying and more may be at the heart that drove this 100-pound, 5'2" hockey-loving kid to unfathomable rage. >> i don't want to comment specifically, but i think there are things that occurred that led to where we are today. lawyer, called in no threats and will fight to have the 16-year-old who has been charged as an adult tried as a juvenile. >> he also says this young man is remorseful, very remorseful, remembers everything that happened on that day. says he will call in mental health experts to evaluate him. the entire thrust of his efforts at the moment will be to have this case tried at the juvenile level. chris and kat, back to you