A surgeon and technician from a Mayo Clinic in Florida flying across the northern corner of the state to retrieve a heart for transplant died Monday in a helicopter crash that also killed the pilot, officials said. The helicopter departed the clinic in Jacksonville around 5:45 a.m. but never arrived at the Gainesville hospital, Shands at University of Florida, about 60 miles to the southwest, said Kathy Barbour, a spokeswoman for Mayo, which is based in Rochester, Minn. Killed were heart surgeon Dr. Luis Bonilla, procurement technician David Hines and the pilot, whose name wasn't released.