Terrifying History on Instagram: "On March 11, 2018, 26-year-old Trevor Cadigan and four of his friends boarded a helicopter for a scenic tour over the New York City skyline. Chilling social media footage, recorded by the passengers themselves, captures their final moments inside the aircraft. The video shows the group in high spirits, completely unaware of the impending tragedy, just before the helicopter experienced a sudden and catastrophic mechanical failure. The crash was caused by an impro