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TEXAS DEPARTMENT OF PUBLIC SAFETY – Wood County Fatal Crash – 9/18/2023

Number of Vehicles in Crash: 1         Number of   Injured:1   Number killed: 1

Date & Time: 9/18/2023 & 7:03 A.M.

County: Wood

Location: State Highway 154, 13.3 miles west of Gilmer, Texas

Posted Speed Limit: 70 mph

Vehicle 1: 2007 Chevrolet 1500

Driver 1:

Leopoldo Guerrero, Jr., male, 24 YOA of Gilmer, Texas.

Seatbelt: No

Non-incapacitating injuries, transported to UT Health Hospital in Quitman, Texas.

Passenger: Deceased

Diana M. Valenzuela, female, 34 YOA of Longview, Texas.

Seatbelt: No

Pronounced By: Dr. Kyle Webster, MD, at UT Health Hospital in Quitman on 9/18/2023 at 9:05 A.M.


Diovanni S. Cisneros, male, 25 YOA of Longview, Texas.

Seatbelt: No

Incapacitating injuries, transported to CHRISTUS Mother Frances Hospital in Tyler, Texas.




Preliminary investigation indicates that vehicle 1 was traveling east on State Highway 154. The driver of vehicle 1 failed to drive in a single lane and veered off the roadway to the north and overturned. During the investigation, the driver was determined to be intoxicated at the time of the crash and has been charged with Intoxication Manslaughter and Intoxication Assault. This investigation is ongoing, and there are no further details at this time.

Weather Condition: Clear

Road Conditions: Dry

Investigated By: Trooper B. Love, DPS Winnsboro

A preliminary crash report will be available for purchase online in 10 days. Link:

Adam Albritton, Sergeant

Texas Department of Public Safety

Media & Communications / Safety Education

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