but laura magjars and maggie are caught inside a maze of metal beams and wires. after momentarily blacking out, magjars comes to and sees that her leg is broken and maggie's arm is severely injured. >> i saw blood pouring out all over. i held her as close as i could and screamed for help from my daughter. >> machinist david wood was near but made it out before the collapse. now he heads back into the wreckage. he doesn't realize he's capturing the chaotic scene on his iphone. >> i took my phone out initially to film their equipment on the stage moving back and forth. i still had it in my hand when i was climbing back in. >> oh, my god! oh, my god! >> after climbing through the metal bars, he sees magjars and her daughter maggie. >> stay still! stay still! are you guys okay? can you crawl out? >> prayter, who's a registered nurse, comes in to help. as stunned bystanders help prop up the rigging. >> i looked at her arm and it was badly injured. i was afraid that she had possibly severed an artery. and i knew she had lost a lot of blood. at that point i was calling o