What happened after Delta Flight 4819 flipped over at Toronto Pearson International Airport?

New exclusive video obtained by ABC News shows the chaotic aftermath of Delta Flight 4819's crash. Passengers were seen hanging upside down in the cabin, suspended by their seatbelts, while flight crew members stood on the ceiling to help them escape. The footage, captured by passenger Peter Kukoff as he crawled out of the aircraft, reveals the disorienting scene inside the overturned plane. According to Kukoff, who spoke with CNN, passengers were unaware something was wrong until the aircraft hit the ground, highlighting the sudden nature of the accident.