Those who knew Christopher Jordan Dorner during college expressed shock at the news that the former college football player is allegedly responsible for shootings that have left three people dead and two wounded.

Dorner attended Southern Utah University from 1997 to 2001 and graduated with a bachelor of science with a major in political science and a minor in psychology, a university spokesman said.

Neil Gardner, an assistant athletic director who works with the student athletes in media relations, interacted with Dorner when he was on the school’s football team during the 1999 and 2000 seasons. Gardner said Dorner was a backup running back who didn’t play a lot, but was “never a disgruntled guy.”

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“When he was in college he was a great kid,” Gardner said. “He was a kid you hoped would do well. He was polite. I liked him.”

Jamie Usera, an attorney in Salem, Ore., said he met Dorner in the spring of 1998 at Southern Utah. Usera, who grew up in Alaska, said he and Dorner, an African American from Southern California, bonded over their shared feelings of culture shock that came with being outsiders on the predominantly white, Mormon campus.

Usera and Dorner eventually joined the football team as running backs and became good friends, Usera said. They shared long hours on the practice field, but neither saw much playing time and both decided to quit the team after two years.

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The friendship endured throughout their remaining years at the school. Usera said he introduced Dorner to the world of hunting and other outdoor sporting. Usera recalled frequent trips into the Utah desert to hunt rabbits with Dorner.

Nothing about Dorner in college raised any red flags that he was mentally unstable or capable of such violence, Usera said.

“He was a typical guy. I liked him an awful lot,” Usera said. “Nothing about him struck me as violent or irrational in any way. He was opinionated, but always seemed level-headed.”

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Usera said he and Dorner frequently had lively discussions. A recurring theme was race relations in the U.S., and the two often had heated but respectful arguments about the extent of racism in the county, Usera said.