Last month, a plainclothes Los Angeles County sheriff's deputy shot and killed Zachary Champommier, an 18-year-old white man, in a Studio City parking lot after the teen allegedly hit the deputy with his car.

Times staff writer Robert Faturechi reports that Champommier's death "sparked outrage and disbelief among family and friends who described the recent Granada Hills Charter High School graduate as a 'band geek' and the last person they would have expected to intentionally run down an officer."

Faturechi spoke to a witness to the June 24 shooting, Douglas Ryan Oeters, 29, who was arrested that evening and released on $20,000 bail. Oeters told The Times he had met Champommier online the night before and had arranged to meet him to see a movie together.

Records show that Oeters, who told The Times he had recently moved to Los Angeles from Ohio in hopes of selling a screenplay, had at least one other brush with the law. In Ohio, he was convicted of a charge related to soliciting sex from a minor, according to the Ohio Department of Rehabilitation and Correction.

A man who witnessed last month's fatal police shooting of an 18-year-old honors student confirmed that the teenager drove at - and struck - a plainclothes deputy but disputed that the young man had sped toward the deputy as authorities contended.

The shooting in a Studio City parking lot sparked outrage and disbelief among family and friends who described the recent Granada Hills Charter High School graduate as a "band geek" and the last person they would have expected to intentionally run down an officer.

Douglas Ryan Oeters, who was being detained by police in the parking lot before the shooting, said Zac Champommier's car struck the Los Angeles County sheriff's deputy, sending him over the hood and onto the ground. Oeters, however, said the young man was driving slowly and did not pose a deadly threat.

In an exchange of online messages with The Times, Oeters, who was arrested on suspicion of interfering with police, characterized the encounter as frightening. He said the team of plainclothes officers gathered in the parking lot were slow to identify themselves as law enforcement.

"They did not show any badge before rushing at me. I am sure Zac was scared just like me and left the parking lot due to a panic they started for no reason," Oeters, 29, said about the June 24 incident. "This has caused an innocent 18-year-old to be shot after he reacted to the group surrounding me."

Sheriff's officials said the two officers who fired their weapons did not have time to identify themselves to the driver. The department has begun an investigation into the shooting, but sheriff's officials said they have no indication that the officers acted improperly.

"The nature of [Champommier's] aggressive actions - actually hitting the deputy - that is not someone who is without some degree of fault," Sheriff Lee Baca said.

According to Oeters, he and Champommier had met online the night before and had arranged "to go see a movie and hang out."

The two had exchanged several messages and phone calls before Champommier pulled into the parking lot about 9:30 p.m., authorities said. Champommier had told Oeters he would be in a white car, Oeters said.

Oeters was peering into a car with a similar description when he was confronted by a group of men in the parking lot. The men, whom Oeters said he initially mistook as a group of "rednecks" looking to pick a fight, were part of an interagency narcotics task force.

The officers, who included members of the Drug Enforcement Agency, the Sheriff's Department and the LAPD, were in the lot discussing a search warrant they had just served. They were in plainclothes with unmarked cars. They suspected Oeters was attempting to break into vehicles.