SAN ANTONIO -

Robert Cameron Redus, 23, was shot and killed by a University of the Incarnate Word police officer after a traffic stop in Alamo Heights early Friday morning, police say.

Alamo Heights police say Redus -- a UIW student -- was shot by Cpl. Chris Carter around 2 a.m. in the parking lot of an apartment complex in the 100 block of Grandview Place off Broadway.

Carter, a five-year veteran of the UIW police force, told Alamo Heights police he attempted to pull over Redus on Broadway and he came to a stop at the Treehouse Apartments.

"The only information I have at this point in the investigation is that it was speeding and driving erratically," said Alamo Heights police Lt. Cindy Pruitt.

Carter, who has previous law enforcement experience, told police investigators that some type of struggle ensued between the two men and he opened fire, killing Redus.

A man who lives in the Treehouse Apartments described hearing five to six gunshots, but said he was also concerned by what he didn't hear from the officer.

"I didn't hear him say anything like, 'Get down on your hands and knees,' you know? I didn't hear him say anything. He just started shooting," the man said.

Redus' family and friends had questions of their own about what happened.

"He's not an aggressive person at all, so the story just doesn't really make sense to any of us," said Sarah Davis, a long-time friend to Redus.

"Cameron was the sweetest, kindest, gentlest person, so compassionate," said Annie Jones, another friend.

Alamo Heights police along with the Texas Rangers are investigating the incident and have not officially said why Carter shot Redus off-campus.

University officials said Carter has been placed on paid administrative leave during the investigation, "as is standard operating procedure for police agencies in Texas."

At noon on Friday, the university issued this statement regarding the incident.

For a list of recent stories Jenna Hiller has done, click here.