TODAY | October 23, 2013
>> in nevada are learning more about the 12-year-old that opened fire at a middle school killing a teacher there. nbc's joe fryer is in sparks again this morning following the investigation. joe , good morning to you.
>> reporter: good morning, savannah. investigators say the 7th grader took a handgun from his home but they still don't know why he opened fire before taking his own life. this morning, the school remains closed but out front there's a growing memorial paying tribute to a heroic victim. in the minutes following monday's shooting there was a desperate search for answers by anyone connected to sparks middle school .
>> i drove through a barricade basically just to get some information. to have somebody talk to me.
>> reporter: reggie landsberry was looking for his big brother mike. he soon learned mike was the only gunshot victim that didn't survive.
>> i'm still in shock, man. it's unbelievable. it's like a terrible dream. terrible.
>> reporter: but as the hours passed he also learned how mike physically put himself between the 12-year-old shooter and students like jose cazares who spoke to us yesterday on today.
>> he was telling him to stop and put the gun down and then the kid yelled out no, like, yelling at him, then he shot him.
>> reporter: police say landsberry actions gave other students a chance to escape.
>> i love my brother and i wish he was here but thank goodness he would help in anyway possible.
>> reporter: that bravery was no surprise to students that gathered around a growing memorial that pays tribute to landsberry. the teacher they called batman because he loved the super hero so much.
>> he just touched our heart in ways we can't explain. he was a real life changer.
>> reporter: that's why jose and his mother wanted to meet reggie landsberry.
>> he's a hero to everybody.
>> reporter: so they could thank his family in person.
>> i'm glad you're safe. i'm glad you're okay.
>> reporter: so far police have not released the name of the 12-year-old shooting suspect. back to you matt and savannah.
>> all right, joe fryer in sparks, nevada. thank you.