Stephan Bonnar : Actual Cause of Death Revealed!

The Clark County coroner just revealed the actual cause of death for UFC Hall of Famer Stephan Bonnar, and it was not vaccine-induced sudden adult death syndrome (SADS)!

Take a look at the viral claims, and find out what the facts really are!


Claim : Stephan Bonnar – Vaccine SADS Was Cause Of Death!

Right after news broke that Stephan Bonnar died suddenly at work, anti-vaccination activists immediately claimed that the 45 year-old UFC Hall of Famer was a victim of COVID-19 vaccine sudden adult death syndrome (SADS)!

Here are some examples on social media:

UFC Hall of Famer Stephan Bonnar dead at 45. If you’re vaxxed you should make sure your family knows your burial preferences. #vaccineinjuries #Vaccines #VaccineDeaths

UFC Hall of Famer Stephan Bonnar dead at 45 | This many young, physically active people simply do not just die as they have for the last 18 months. Vaccine-induced myocardial infarction.

UFC Hall Of Famer Stephan Bonnar DIED SUDDENLY At 45 SUSPECT COVID VACCINE 25th Dec, 2022

Read more : Did Stephan Bonnar Die From Vaccine SADS?!


Truth : Stephan Bonnar – Drug Overdose Was Cause Of Death!

Stephan Bonnar (born Stephan Patrick Bonnar on April 4, 1977) was an American mixed martial artist who was also known as The American Psycho. He was inducted into the UFC Hall of Fame on July 6, 2013.

On Thursday, December 22, 2022, UFC announced that Stephan Bonnar died from “presumed heart complications while at work“. Reports claim that he died from heart failure. But note that it was their “presumption” at that time, not actual fact.

Immediately, anti-vaccination activists blamed his sudden death on the COVID-19 vaccine, with some remotely diagnosing Stephan Bonnar’s cause of death as vaccine-induced sudden adult death syndrome, or vaccine-induced myocarditis.

However, that’s just nonsense because Stephan Bonnar was anti-vaccination himself, like Kris Jordan, Aaron Carter, and Kirstie Alley.

In September 2021, Bonnar even posted a series of (now deleted) selfie videos in which he claimed he was being denied hospital treatment because he was not vaccinated against COVID-19!

Recommended : Aaron Carter Autopsy Reveals True Cause of Death!

The Clark County coroner’s office conducted an autopsy on Stephan Bonnar after his death. Typically, the coroner’s office determines a cause and manner of death within 90 days, but a spokesperson said that his case required more time because it required additional testing.

On Monday, April 24, 2023, the Clark County coroner’s office finally revealed their official cause of death for Stephan Bonnar – Fentanyl, Parafluorofentanyl and Mitragynine intoxication“. His death was ruled as “accidental“.

Fentanyl is the synthetic opioid that is responsible for many sudden deaths in the United States, while parafluorofentanyl is an analogue of fentanyl.

Fentanyl and its analogues are about 50X stronger than heroin, and 100X stronger than morphine, and have been linked to tens of thousands of deaths every single year, in the United States alone.

Mitragynine is the active compound derived from the kratom plant, and is commonly use in the United States as a painkiller, and to help with opioid withdrawal symptoms.

Stephan Bonnar had a history of opioid use. In a September 2021 interview with MMA Fighting, he shared that he was on a 30 mg/day regimen of oxycodone to treat his long-term injuries.

After his death, UFC middleweight Sean Strickland came out to criticise those who tried to whitewash his death, stating that Stephan Bonnar was addicted to opioids.

… the Stephan Bonnar I knew was fucking nuts. He was addicted to opioids, he got arrested, got kicked out of the hospital because they wouldn’t give him opioids, his gym went under during COVID.

The coroner’s report confirmed, once and for all, that the Stephan Bonnar was just another victim of the opioid crisis in the United States. It should be noted that he isn’t the first MMA fighter to die from fentanyl.

In May 2022, Bellator fighter Jordan Young was confirmed to have died from an accidental overdose of fentanyl and alprazolam (better known as Xanax).

Stephan Bonnar joins a long list of athletes whose deaths / injuries were used to create and propagate FAKE NEWS about the safety and efficacy of COVID-19 vaccines, like these examples:

Will these anti-vaccination activists apologise for lying to you? Nope! They will just move on to the next athlete tragedy…

Please help us FIGHT FAKE NEWS by sharing this fact check article out, and please SUPPORT our work!

Don’t forget to protect yourself, and your family, by vaccinating against COVID-19!


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Dr. Adrian Wong has been writing about tech and science since 1997, even publishing a book with Prentice Hall called Breaking Through The BIOS Barrier (ISBN 978-0131455368) while in medical school.

He continues to devote countless hours every day writing about tech, medicine and science, in his pursuit of facts in a post-truth world.


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