Even by MIT standards, says Tom Leighton, Danny Lewin was special. "He was really exceptionally smart. MIT has a lot of really smart people, and Danny stood out even among that rarified environment," says Leighton, who was then one of Lewin's professors at the Massachusetts school's computer science laboratory. "He liked working on the hardest...Learn More

It started with a swim on a sunny afternoon off the Florida coast. Before long, the two men were nursing shark bites. The pair were in knee-deep water when they got nipped a few minutes apart. One in the foot and the other in the shin about 100 yards away, the Volusia County Sheriff's Office said. They then went to nearby Bert Fish Medical Center...Learn More