A California university student who has been missing since Thursday's Bastille Day attack in Nice is among those who died after a truck driver deliberately plowed through a crowd, killing at least 84 people, University of California, Berkeley, said on Sunday.Nicolas Leslie, 20, was one of 85 Berkeley students on a 15-day study-abroad trip on entrepreneurship in Europe. Three other students were injured in the attack."This is tragic, devastating news," UC Berkeley Chancellor Nicholas Dirks said in a statement released Sunday. "All of us in the UC Berkeley family - both here on campus, and around the world - are heartbroken to learn that another promising young student has been lost to senseless violence."Leslie was a junior in the university's Natural Resources department who planned to go on to business school, Dirks said. He was one of 85 Berkeley students attending a 15-day course on European entrepreneurship and innovation held in Nice, the university said.