Plano Homicide Suspect Dies in I-35 Chase and Fire

Key points

• Tashley Gately, 32, was killed by gunshot wounds at her home on Lakestream Drive in Plano just after 10 p.m. on Sunday, September 13, 2026.
• Suspect William Ralph Grundy, 31, fled the scene in a black Dodge Charger after the shooting; other family members present were unharmed and identified him to police.
• Plano police set up surveillance on the vehicle and located it on Monday morning, initiating a high-speed chase northbound on I-35.
• The chase involved a Texas State Trooper who attempted to stop the driver; the suspect reportedly fired at the trooper before crashing between exits 481 and 482 in Denton County.
• Grundy was found dead inside the vehicle after it caught fire during a standoff with Valley View Police; the cause of death has not been officially determined.
• The crash caused northbound I-35 traffic to back up approximately five miles to exit 477, though lanes have since reopened.

Background

This incident follows a pattern of violent pursuits on I-35 in the region, including a fatal shooting in August 2026 involving a stolen ambulance. The current case highlights ongoing challenges in high-speed chases on major Texas highways, where previous incidents have resulted in significant traffic disruptions and safety concerns.

How outlets are covering it

NBC 5 Dallas-Fort Worth emphasized the immediate traffic impact and the lack of official explanation for the vehicle fire or cause of death. FOX 4 News Dallas-Fort Worth provided specific names, identifying the victim as Tashley Gately and the suspect as William Ralph Grundy, and detailed the surveillance operation that led to the chase. The Denton Record-Chronicle focused on the logistical impact of the I-35 closure and the multi-agency response involving Plano, Valley View, and Texas DPS, though its detailed content was obscured by site navigation elements in the source material. All outlets agreed on the basic timeline and outcome but differed in the depth of personal identification and operational details provided.

Why it matters

The case underscores the risks associated with high-speed police chases on major interstate highways, particularly I-35, which has seen multiple fatal incidents in recent months. The death of the suspect without a clear cause of death raises questions about the circumstances of the crash and fire, while the closure of the highway highlights the significant public safety and logistical costs associated with such pursuits. The resolution of the homicide through the suspect's death may complicate the legal process for the victim's family, as no formal trial or sentencing will occur.

What to watch

Authorities are expected to release the official cause of death for William Ralph Grundy once the investigation is complete. The Plano Police Department will continue to process the homicide case, though the suspect's death may limit further legal proceedings. Traffic conditions on I-35 have normalized, but the incident may prompt reviews of pursuit protocols by Texas DPS and local police departments to mitigate future risks on the highway.