Troopers took Steven Gibbs into custody Monday morning after he was released from Yakima Valley Memorial Hospital.
Investigators say Gibbs' pickup slammed into another truck late Friday night on Wenas and Lancaster Roads. 18-year-old Clayton Kester was killed.
There was no alcohol or drug test given at the scene. Investigators are currently testing Gibbs' blood for alcohol content.
He makes his first court appearance tomorrow.