Full Breakdown
Tesla Driver Charged with Manslaughter After Model 3 Crashes Into Katy Home, Killing Martha Avila
7/5/2026, 4:07:32 AM
Fatal Crash Overview
On June 19, 2024, a Tesla Model 3 traveling on Highway 6 in Harris County, Texas, entered a driveway in Katy and struck a house at approximately 73 mph, killing 76-year-old resident Martha Avila. Surveillance video shows the vehicle plowing through the front playroom while the victim was preparing dinner.
Driver Use of Full Self-Driving
Driver Michael Butler, 44, was delivering for DoorDash and had engaged Tesla’s Full Self-Driving (FSD) mode for several prior stops that evening. Investigators obtained the car’s black-box data and consent to search Butler’s phone, which revealed recent Google queries such as “Tesla FSD not aggressive enough 2026” and “Tesla FSD too timid.”
Timeline of Key Developments
- June 19, 2024 – Crash kills Avila.
- Early July – Butler appears before a Harris County judge; bond set at $150,000.
- July 2024 – Avila’s family files a wrongful-death suit seeking at least $1 million.
- Following weeks – NHTSA opens a special investigation into Tesla’s FSD.
- Upcoming Monday – Butler’s next court hearing.
Technical Findings
Investigators recorded a speed of 73 mph, full accelerator depression to 100 % for six seconds, and no brake application. The steering wheel turned right despite a planned left turn. No mechanical failure or driver medical issue was identified; toxicology was negative for alcohol, drugs, seizures, stroke, or heart attack.
Official Statements
Tesla’s AI vice president Ashok Elluswamy posted that the driver manually overrode the self-driving system by fully depressing the accelerator, causing the vehicle to reach 73 mph. Tesla asserts the crash resulted from driver action, not a software defect. The NHTSA has launched a special investigation into the Model 3’s FSD performance.
Family Lawsuit and Criticism
Avila’s daughter and son-in-law have filed a wrongful-death suit against Butler and Tesla, alleging negligent driver behavior and defective vehicle design. The complaint seeks at least $1 million and challenges Tesla’s safety claims for its Full Self-Driving feature.
Conflicting Accounts
Butler testified that the car was in autopilot mode and that he “passed out” before impact, while Tesla’s data shows he pressed the accelerator to 100 % and did not apply the brakes. No medical evidence supports Butler’s loss-of-consciousness claim, and investigators found no vehicle malfunction.
Verbatim Quotes
- “the driver manually overrode self-driving by pressing the accelerator all the way to 100 percent” — Ashok Elluswamy, Vice President of AI, Tesla
- “reached a speed of 73 mph during the crash.” — Ashok Elluswamy, Vice President of AI, Tesla
- “passed out.” — Michael Butler, driver
Future Proceedings
Butler is due in court on Monday for a further hearing. The civil wrongful-death case proceeds, and the NHTSA investigation will assess Tesla’s FSD software. Outcomes may affect future regulatory scrutiny of autonomous-driving technologies.
