Investigators believe parts of a private jet which crashed in Florida and killed all nine on board may have broken off in the air.The Learjet 60 was bound for the Bahamas from Austin, Texas when it nosedived into a multi-lane highway and exploded on impact, reports BBC.A tech entrepreneur and his young family, as well as the 20-year-old copilot, were among those who died on Sunday.The US National Transportation Safety Board (NTSB) said weather conditions would be a major focus of the investigati...
