DUCKTOWN, POLK COUNTY (WRCB) - A man who has faced at least one DUI charge is now suspected of driving drunk and killing a couple from Ohio.

The crash happened on Highway 64 Wednesday morning.

"The gentleman heading westbound hit the rumble strip, over corrected back into the lane, and had a head on collision with the motorcycle," said Don Klein who works on the same stretch of Highway 64.

Robert and Michele Coblentz were visiting family in Cleveland and seeing the Ocoee when authorities say 27 year-old Ryan Ehrbar of McCaysville Georgia hit their motorcycle head on.

The accident happened at the entrance of Wildwater. Don Klein says his staff was first on the scene and stayed with the Coblentzs until paramedics arrived.

"One of the victims was pretty much gone when they arrived," said Klein, "the other victim did have a pulse and they provided CPR."

Klein says he's never seen a crash so severe, but says there have been plenty of close calls.

Klein has requested TDOT add double lines to keep drivers in their lane.

"If you look out on the road there's several sets of skid marks," said Klein, "... people turning in here to go rafting, people passing when they shouldn't be or just speeding."

The Tennessee Highway Patrol has not said if speed was a factor in this case, but they believe alcohol could be.

According to District Attorney Steve Bebb, Ehrbar is charged with two counts of vehicular homicide. He was arrested Thursday and taken to the Polk County Jail.

Channel 3 learned today Ehrbar was arrested four months ago in Fanin County for DUI.

Bebb says the district attorney's office is waiting on blood results to determine if he be charged with DUI in this case.

Stay with Eyewitness News for more on this story.