Mr Read said he found his brother fatally injured at the bottom of the lift shaft in the hotel basement during a panicked search.
“Molly ran over, dropped to her knees and just started screaming ‘Tyler, get up’,” the 18-year-old told the .
“It was heart-wrenching, heartbreaking. I never, ever thought I would see anything like that in my entire life.
“To the day I die I’m never going to be able to take my mind off it.”
During searches, Mr Kerry’s vape was found covered in blood on the hotel’s first floor – Mr Read said.
He was discovered “flat on his face” wearing just a pair of boxers and socks, the family previously said.