University of Arizona professor shot and killed on campus, suspect in custody

A professor at the University of Arizona was shot and killed on campus Wednesday by a former student, authorities said. The suspect has been taken into custody.

The shooting occurred inside the Harshbarger Building on the university's main campus in Tucson, University of Arizona Police Chief Paula Balafas said. At around 2 p.m. local time, somebody inside the building contacted police and asked them to remove a former student who was not allowed to be there, Balafas said. While police were on their way, they received a second call saying there had been a shooting. A subsequent call to police said that the shooter had fled the building.

Firefighters treated the victim and transported him to a local hospital, where he was pronounced dead, Balafas said. The professor was not identified, but Balafas said he was a professor of hydrology. Balafas could not elaborate on any prior relationship between the shooter and the victim.