A Southeastern Oklahoma State University football player is dead and his teammate is facing a felony charge after a single-vehicle rollover crash just across the Texas border in the early morning hours of October 8, 2026. Senior defensive lineman Dylan Sebock, 23, as reported by KBTX, was pronounced dead at the scene in Sherman, Texas, while senior linebacker De’Teaurean Johnson was arrested on an intoxication manslaughter charge after police concluded that his intoxicated driving contributed to Sebock’s death.
Sherman police officers responded at approximately 12:58 a.m. to multiple 911 calls reporting a rollover in the 5700 block of North U.S. Highway 75 East Control Road, just off U.S. 75 in Grayson County, according to Cory Hogue Sports. Both occupants of the vehicle had been ejected by the time officers arrived. KFOR reported that the crash occurred just across the Oklahoma-Texas state line from Southeastern's campus.
According to the same account, officers found Sebock about 15 feet west of the service road near the damaged vehicle, where he was pronounced dead. Johnson was lying in the roadway. KXII reported that Johnson stood up and tried to flee on foot when he saw the first responding officer; he was quickly detained.
Investigators Point to Intoxication as the Cause
Johnson was evaluated for injuries before being formally charged. Police said his intoxicated driving contributed to Sebock’s death; after his release from a local hospital on October 8, he was arrested on an intoxication manslaughter charge, according to KXII.
Under Texas Penal Code § 49.08, intoxication manslaughter is a second-degree felony, according to FindLaw. The statute applies when a driver’s intoxication is found to have caused another person’s death.
Statewide alcohol-crash context
The Texas Department of Transportation’s 2024 report listed 698 fatalities in the “DUI Drivers” category for crashes involving alcohol. That statewide total provides broader context but does not establish how Grayson County compares or determine the cause of this crash, according to TxDOT.
Two Seniors on the Savage Storm Roster
Sebock, a defensive lineman from Midwest City, Oklahoma, recorded 32 tackles for the Savage Storm and earned Third Team All-Great American Conference honors in 2025, according to Southeastern Oklahoma State University Athletics. Cory Hogue Sports described him as one of the defense’s leaders.
Johnson was a linebacker. Just weeks before the crash, he returned an interception 85 yards for a touchdown in Southeastern's 35-0 win over Southern Nazarene on September 26.
A Season Interrupted
The crash occurred in Grayson County, according to the Bryan County Patriot.
The crash occurred in Sherman, Texas.
