A formal manslaughter charge was filed Monday afternoon against a driver accused of causing the death of his passenger in a traffic accident Saturday at Harrison and Federal Streets.

Monday afternoon, Pottawatomie County District Attorney Allan Grubb charged Christian Trey Key, 25, with a listed address in Oklahoma City, with first-degree manslaughter. He is accused of causing the death of Tanya Lynn Wolfe, 47, of Shawnee, on Saturday, April 13, records show.

Key was driving a 2004 Toyota Corolla while under the influence of an intoxicating substance and he also was driving under suspension, according to the filing and information released from Grubb's office. The filed charge also alleges Key was driving in a reckless, careless and wanton manner without regard for the safety of other persons when he drove across the center line near Harrison and Federal Streets into oncoming traffic and struck a 2000 Dodge Ram pickup head-on.

According to the Shawnee Police Department, which didn't release any information about the crash until Monday, Key and Wolfe were occupants of the northbound Corolla on Harrison Street when Key went left of center and hit the southbound pickup driven by Donald Morgan, 62.

Morgan was treated on the scene by first responders and released, said Shawnee Police Cpl. Vivian Lozano, while Key and Wolfe were rushed to St. Anthony Hospital Shawnee, where Wolfe was pronounced dead from injuries she suffered in the crash.

Key was treated for his injuries at the hospital, then released and arrested on a manslaughter complaint. The case was forwarded to the district attorney's office for review, followed by a quick filing of formal charges on Monday.

“Misconduct which causes the death of others will not be tolerated,” Grubb said in a written statement.

Key remains jailed in the Pottawatomie County Public Safety Center on a $75,000 bond and his next court date is expected at the end of April.

If convicted of first-degree manslaughter, Key could face imprisonment of no less than four years, the filing shows.