UCLA Student Shot Professor Over Grades Before Killing Himself, Say Police

The victims in today's shooting at UCLA have been identified as a professor and a student.

Sources tell CBS News that the professor was William Klug of the university's Department of Mechanical and Aerospace Engineering. The student, who is believed to be the shooter, has not been identified.

Update 6/2: The shooter has been ID'd as Mainak Sarkar, a former doctoral student who accused Klug of stealing his computer code.

According to Klug's personal research group's website, his area of study was focused on biomechanics. Klug's staff bio on the engineering department's website says he earned his PhD from Caltech in 2003.

A law enforcement source told KNX's Claudia Peschiutta that the shooter was upset about his grades:

Classes wrap up for the spring quarter at the end of this week, and some students were already taking their finals when the shooting took place on Wednesday morning.

While the entire campus was on lockdown and classes were canceled for the day, UCLA Executive Vice Chancellor and Provost Scott Waugh said normal operations would resume on Thursday. "We want to resume normal operations as quickly as possible, so we will resume scheduled classes tomorrow morning," he said in a release.