Cold Case Files: Seventy-mile Oklahoma drive in 2011 was a trip into the abyss of unsolved disapperances

Timur Mardreyev

On November 29, 2011, Timur Mardreyev, a 31-year-old Kazakh immigrant, vanished during a drive from Grove, Oklahoma, to Tulsa. Nearly 14 years later, this cold case remains unsolved, marked by a perplexing timeline and suspicions of foul play, leaving his family and investigators searching for answers.

Timur, a frugal and responsible man, lived in Grove with his sister, Gulnara Brown, and her husband, Steve. Engaged to be married in Russia in 2012, he had recently endured the loss of both parents, yet showed no signs of suicidal intent or desire to flee.

Known for his meticulous habits, he carried a Bible and was handling visa paperwork for his planned return to Russia.

That evening, Timur left home around 8:00 p.m. in his 2010 Hyundai Santa Fe SUV, carrying his wallet, passport, and $3,000-$5,000 in cash. GPS data showed him heading to Tulsa, 70 miles away, but he took an unusual back-road route, avoiding the Will Rogers Turnpike despite having a PikePass.

Between 9:00 and 10:00 p.m., his SUV parked at the River Spirit Casino in Tulsa for an hour, though his family doubts he entered, given his aversion to gambling. By 11:00 p.m., the vehicle was abandoned at the Batman Convenience Store in east Tulsa, where his phone last pinged the internet before going silent.

On December 9, the SUV was towed. Inside were the keys, a GPS device, sunglasses, a Coke, and an uncharacteristic open whiskey bottle. Missing were Timur’s Bible and visa papers. The driver’s seat was adjusted too far forward for his 6’1” frame, the radio was set to a rap station (unlike his usual preferences), and gravel was scattered inside--odd for his pristine car.

The Oklahoma State Bureau of Investigation (OSBI) suspects foul play, citing the vehicle’s condition and Timur’s stable life. Theories include robbery or abduction, possibly targeting his cash, or an encounter with criminals in Tulsa’s east side.

His grief and immigrant status raised questions, but no evidence suggests he left voluntarily. Suicide is unlikely, given his plans for the future.

Gulnara and Steve Brown, devastated, describe Timur as their last close family member. They’ve cooperated fully, providing DNA and maintaining a Facebook page, “Missing Timur Mardeyev,” for awareness.

As of September 1, 2025, the case remains active with OSBI’s Cold Case Unit, but no new leads have emerged since a 2022 review.

nyone with information should contact OSBI at 1-800-522-8017 or tips@osbi.ok.gov. Timur’s case highlights the enduring pain of unresolved disappearances, where one detail could bring closure.