suspect? reporter: yeah, lindsey, richard fierro is a decorated army veteran. he did a total of four tours between iraq and afghanistan, and he was at q last night with his daughter and friends, and one of his daughter s friends was supposed to be performing and that s why they were there, and when the gunshots rang out he dropped to the ground and then made the split-second decision to charge the shooter. take a listen. i grabbed him by the back of his little cheap-ass armor thing and pulled him down, and i started whaling on this dual and was on top of him, and one of the performers walked by or was running by, and i told her, kick this guy, and she took her high heel and stuffed it in his face. reporter: fierro is credited,
there s a bench seating. i fell and hit the back. i tried when i tried to get up, i fell backwards. as i hit it, i saw the acu, it was over there. i don t know if he was shooting. there was a lull. i saw that and i saw the people in the patio. i found out my wife was out there. that s where they had run. i grabbed him by the back of his little cheap-asss armor thing. he was hiding there. he jumped up with me. i have no idea. that guy did the same act. amazing. pull the dude down. pin him against the side. just started i think he went for his pistol. i don t know. either way i grabbed the pistol from him. then i told the guy, move the ar, the kid in front of me. he was at his head. i said, move the ar. get it away from him.
this ring camera footage showing him surrendering to police in 2021 after allegedly making a bomb threat against his mother. there was s.w.a.t. team, bomb squad, the whole nine yards. reporter: leslie bowman, the owner of that home, witnessed the moment. would you say that those were some significant warning signs? yeah, absolutely. someone who can threaten his grandparents as well as his mother with weapons and explosives, that s very, very serious, and a big warning sign. reporter: but aldrich s family refused to press charges. and because of that, the case was dismissed and aldrich s record sealed. and that, authorities say, allowed him to legally purchase that ar-style rifle. and on the night of the mansion sacker, richard fierro, an army veteran, was at the club with his wife and daughter to watch their friend wyatt kent perform. he says the gunman walked through the door shooting. seconds later, fierro pouncing. i grabbed him by the back of this little, cheap armor thin