A deadly collision at Scottsdale Airport involving a Bombardier Learjet 35A and a Gulfstream 200 resulted in one death and four injuries. The Learjet’s landing gear failed, causing it to crash into a parked Gulfstream jet. The incident occurred around 2:45 p.m. local time. Authorities are investigating the cause as the National Transportation Safety Board takes over. The airport reopened after six hours, with emergency responders and city officials offering condolences.