A Cessna Citation twinjet that was carrying donated organs and a medical transplant team crashed in Lake Michigan late Monday afternoon, killing all six people aboard the airplane. The crew had reported an emergency less than five minutes after taking off from Milwaukee and requested a return to the airport, FAA spokesman Tony Molinaro told the Associated Press.
          The jet then dropped off the radar screen. Rescuers quickly found a fuel slick and debris in the lake, and early Tuesday morning the Coast Guard abandoned the rescue. "The condition of the aircraft debris and human remains found indicate a high-speed impact," Coast Guard Capt. Bruce Jones said at a news conference. "We believe this to have been a non-survivable crash."
         The jet was leased by the University of Michigan Health System in Ann Arbor, Mich., and there were six people on board -- two pilots for Marlin Air, two surgeons, and two transplant specialists. The team was returning from Milwaukee with unspecified organs for transplant to a patient in critical condition in Michigan. It was scheduled to be a 42-minute flight.