EXCLUSIVE: 'This is when it all got real': Firefighter log reveals deadly moments at Astroworld

HOUSTON – The entries are handwritten in a rushed scrawl and begin mundanely enough: "On location, setup" and "meet with (police) liaison."

But as the situation deteriorated last Friday at Astroworld Festival, entries in a Houston Fire Department Activity Log quickly turned from troubling – "Participants using bolt cutters to get in" – to harrowing – "Unconscious female in middle of crowd" – to deadly – "Reported cardiac in progress.”