Leavenworth County sheriff’s officers still are investigating why a 1991 Ford Thunderbird driven by Adam M. Kosanke, 22, Tonganoxie, crossed the center line of the highway and collided with a 1989 Jeep driven by Michael R. Arneson, 56, De Soto. Kosanke was pronounced dead at the scene, and Arneson was taken by Leavenworth County Emergency Medical Service to Lawrence Memorial Hospital, where he died, according to sheriff’s reports.

Sgt. Andy Dedeke of the sheriff’s department said the investigation continues into the accident, which occurred about 2:20 a.m. Sunday.

“I don’t believe weather was a factor at the time of the accident,” Dedeke said. “It was a light drizzle, if anything. As far as alcohol, the results are still pending on the tests that we did. It could very well be that simply one driver fell asleep.”

Results of blood tests will be available in about three weeks, the sergeant said. Kosanke was not wearing a seat belt, he said, but Arneson was wearing one.

Kosanke was traveling south on 24-40, while Arneson was headed north. Dedeke said he wasn’t sure where each man was going at the time of the crash.

“Right now, what we basically want to do is that we know a few people who Adam was with on Saturday evening and we’ll talk with them to get a feeling about what he was doing prior to the accident and where he might have been going,” he said.

And officers plan to talk with Arneson’s wife.

“Obviously, there are some questions that we have that we will never have the answers to,” Dedeke said.

An obituary for Mr. Kosanke appears on page 2A.