17-year-old missing from Delaware County

Oklahoma Highway Patrol has issued an Endangered Missing Advisory for 17-year-old Tristan Vaughan, last seen in Kansas, Oklahoma.

Sunday, September 7th 2025, 8:00 am

By: Graham Dowers

KANSAS, Okla. -

The Oklahoma Highway Patrol has issued an Endangered Missing Advisory (EMA) on behalf of the Delaware County Sheriff’s Office for 17-year-old Tristan Vaughan.

Authorities say Vaughan was last seen in the town of Kansas, Oklahoma. He is described as 5 feet 11 inches tall, weighing 135 pounds, with brown hair and blue eyes.

According to the advisory, he was last spotted wearing black sweatpants, a green and white camouflage hoodie, and white shoes. Officials say Vaughan has recently made statements about self-harm, raising concerns for his safety.

Law enforcement is urging anyone with information on Vaughan’s whereabouts to immediately contact local authorities, tribal law enforcement, or call 911.

Graham Dowers

Graham Dowers is a digital content producer for Griffin Media, with a background in linguistics, Russian studies, cybersecurity, and immigration law. He now produces digital content, drawing on global and local experience to tell impactful stories.