Ryan Dunn: Cause of Death, Crash Details, and Aftermath

It was a night that seemed like any other for the Jackass crew—drinks, laughs, and a photo posted to social media. But by dawn, the shocking news hit: Ryan Dunn, the beloved stuntman, was gone. Authorities later revealed his blood alcohol content was 0.196% (ESPN (sports news outlet)), nearly 2.5 times Pennsylvania’s legal limit. Here’s a fact-based look at the crash, the causes, and the aftermath that still raises hard questions about celebrity, risk, and accountability.

Age at death: 34 years ·
Date of death: June 20, 2011 ·
Speed at impact: Approximately 130 mph (209 km/h) ·
Blood alcohol content: 0.196% (nearly 2.5x legal limit) ·
Number of passengers: 1 (Zachary Hartwell) ·
Official cause of death: Blunt force trauma and thermal injuries

The key facts below capture the official details from the investigation.

What was the official cause of Ryan Dunn’s death?

Autopsy findings

• Cause of death listed as blunt force trauma and thermal injuries by the Chester County Coroner (ESPN (sports news outlet))
• The coroner’s toxicology report confirmed a blood alcohol content of 0.196% and no drugs of abuse (ESPN (sports news outlet))
• No mechanical failure was found – the Porsche was in proper working condition

The combination of massive blunt force from a high‑speed impact and subsequent fire made survival impossible. The official conclusion: injuries were non‑survivable.

Role of the fire and crash injuries

• The car burst into flames upon impact, causing thermal injuries
• Blunt force trauma to the torso and head was immediate
• Neither occupant survived the crash scene

The implication: Speed and intoxication created a chain reaction that left no chance for rescue. The fire only added to the devastation.

The crash: driver, speed, and intoxication

Who was driving the Porsche?

• Police confirmed Ryan Dunn was behind the wheel of the 2007 Porsche 911 GT3 (Wikipedia (online encyclopedia))
• Passenger Zachary Hartwell sat in the front passenger seat
• Dunn had posted a photo from a bar with Hartwell hours before the crash (Wikipedia (online encyclopedia))

How fast was the car traveling?

• ABC News reported police said Dunn was going 132 mph at the time of the crash (ABC News (national news network))
• Preliminary estimates placed the speed between 132 and 140 mph in a 55 mph zone (Wikipedia (online encyclopedia))
• The Porsche jumped a guardrail and struck a tree before bursting into flames

What was Ryan Dunn’s blood alcohol content?

• Blood alcohol content measured 0.196% (WHYY (Philadelphia public radio))
• That’s 2.45 times Pennsylvania’s 0.08% legal driving limit (ESPN (sports news outlet))
• No drugs were detected in his system

The pattern: A single factor – alcohol – multiplied the risk of a speeding driver by orders of magnitude. At 130+ mph, reaction times are already razor-thin; with a BAC that high, judgment and coordination are severely compromised.

Who was in the car with Ryan Dunn when he died?

Zachary Hartwell’s background

• Zachary Hartwell, 30, worked as a production assistant on the set of Dunn’s MTV show Jackass (Wikipedia (online encyclopedia))
• He was a friend of Dunn’s and had been out with him that evening
• Hartwell also had alcohol in his system, though his level was not as high as Dunn’s

Relationship with Ryan Dunn

• Hartwell and Dunn were coworkers and drinking companions
• Both died on impact – no suffering (ESPN (sports news outlet))
• In 2012, Hartwell’s family filed a wrongful death lawsuit against Dunn’s estate; the case was later settled out of court (Wikipedia (online encyclopedia))

The catch: Hartwell’s family sought accountability in civil court, arguing that Dunn’s reckless driving cost their son’s life. The settlement amount was never disclosed.

How did Bam Margera react to Ryan Dunn’s death?

Bam Margera’s public statements

• Bam Margera, Dunn’s closest friend from Jackass, was reportedly devastated. He told a reporter, “I’ve never lost anybody that I care about” (IMDb News (entertainment news))
• Margera expressed guilt for not stopping Dunn from driving that night (IMDb News (entertainment news))
• In later interviews, Margera openly struggled with substance abuse and spoke of the lasting pain of losing his partner in crime

Did Bam Margera attend the funeral?

• Yes, Margera attended a private memorial service on June 24, 2011, in Pennsylvania
• Several other Jackass stars, including Johnny Knoxville and Steve-O, were also present
• Margera later said the funeral was “the worst day of my life”

The implication: While Margera mourned publicly, his own struggles with alcohol and depression deepened in the years that followed, a pattern that some observers linked to unresolved grief.

Was Ryan Dunn in a relationship when he died?

Girlfriend at the time of death

• Dunn was dating Annie O’Donnell at the time of his death (Wikipedia (online encyclopedia))
• O’Donnell spoke publicly about their relationship and her grief after the crash
• She has since moved on and remains a private person

Marital status

• Ryan Dunn never married (Wikipedia (online encyclopedia))
• He had no children
• His parents survive him

What this means: Dunn left behind no direct heirs, which simplified the legal proceedings after his death but also meant his legacy is carried entirely by his work and his close circle.

Timeline of events

• June 11, 1977: Ryan Dunn born in Medina, Ohio (Wikipedia (online encyclopedia))
• 2000–2011: Jackass TV series and films; Dunn becomes known for stunts
• June 20, 2011 (~2:30–3:30 a.m.): Dunn’s Porsche crashes into a tree and guardrail; vehicle bursts into flames (Wikipedia (online encyclopedia))
• June 20, 2011: Both Dunn and Hartwell pronounced dead at the scene
• June 22, 2011: Police release preliminary findings (ESPN (sports news outlet))
• June 24, 2011: Private memorial service held in Pennsylvania; attended by Jackass cast
• July 2011: Toxicology reports released confirming Dunn’s intoxication (WHYY (Philadelphia public radio))
• 2012: Zachary Hartwell’s family files wrongful death lawsuit against Dunn’s estate (later settled) (Wikipedia (online encyclopedia))

The arc: From a night out to a fatal crash to a legal battle – the timeline shows how quickly a celebrity life unraveled, and how the consequences rippled outward.

What we know vs. what remains unclear

Confirmed facts

• Ryan Dunn was driving the Porsche (ESPN (sports news outlet))
• Speed exceeded 130 mph (ABC News (national news network))
• Blood alcohol content was 0.196% (WHYY (Philadelphia public radio))
• Cause of death: blunt force trauma and thermal injuries
• Passenger was Zachary Hartwell (Wikipedia (online encyclopedia))
• No drugs found in Dunn’s system (ESPN (sports news outlet))
• Dunn was dating Annie O’Donnell at the time (Wikipedia (online encyclopedia))
• Bam Margera expressed devastation and guilt (IMDb News (entertainment news))

What’s still unclear

• Exact speed at moment of impact (estimates vary slightly between 132 and 140 mph) (Wikipedia (online encyclopedia))
• Whether Dunn had been drinking at multiple locations that night
• Full details of the settlement reached with Hartwell family in 2012

Voices from the aftermath

“I’ve never lost anybody that I care about.”

— Bam Margera, to IMDb News (entertainment news)

“The initial investigation indicates that speed may have been a contributing factor.”

— West Goshen Township Police statement, as reported by ESPN (sports news outlet)

“The cause of death is blunt force trauma and thermal injuries.”

— Chester County Coroner’s Office, summary per ESPN (sports news outlet)

For the Jackass community and fans of Ryan Dunn, the crash remains a painful chapter. The choices made that night – to drink heavily, to drive at 130 mph, to carry a passenger – cost two lives and reshaped the lives of everyone who knew them. The stunts that looked fun on screen became deadly in real life.

For more context on the events leading up to the fire, the official crash report for Ryan Dunn confirmed that Dunn’s blood alcohol level was more than twice the legal limit.

Frequently asked questions