India, Nov. 3 -- Texas-based technology entrepreneur Adam Robinson, 44, his wife Helen Sharp, 40, and their two young children were among six people killed when a private jet crashed in Florida, leaving a trail of destruction near a residential area.

The Learjet 60 went down on Sunday after reportedly plunging nearly 30,000 feet in about a minute before crashing onto a street outside a trailer park in Palm Beach. The aircraft burst into flames and was completely destroyed. Robinson's children, Emma, 4, and Charlie, 2, also died in the crash.

"I guess, I'm dead," Robinson quipped in an online exchange about the best locations for building SaaS companies. The remark came after another user suggested that Tel Aviv was home to some of the w...