From ESPN:

Los Angeles Angels pitcher Nick Adenhart and two others were killed by a suspected drunk driver Thursday, a shocking end to the life of a rookie who had overcome major elbow surgery to realize his big league dreams. ...

Adenhart died in surgery at the University of California, Irvine Medical Center. Henry Nigel Pearson of Manhattan Beach, a 25-year-old passenger in the car, and the driver, 20-year-old Courtney Frances Stewart of Diamond Bar, were pronounced dead at the scene, police said.

Peter Abraham, Tyler Kepner and George A. King III have reaction from the Yankees.

Our thoughts are with everyone affected by this tragedy.