Doink The Clown -- Cause of Death Revealed ... Accidental Drug Overdose

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Doink The Clown
Cause of Death Revealed
Accidental Drug Overdose
Ex-WWE star Doink the Clown died from a toxic overdose of morphine and hydrocodone ... this according to officials in Collin County, Texas.

TMZ has obtained the autopsy report for Matthew Wade Osborne -- whose body was discovered at his girlfriend's home on June 28.

According to the report, the medical examiner discovered "high levels of the opiates morphine and hydrocodone" in Osborne's system at the time of his death.

FYI -- hydrocodone is the key ingredient of the painkiller Vicodin.

The medical examiner expains, "I am of the opinion that [Osborne], a 55 year old white man, died as a result of toxic effects of opiates."

The ME says Osborne also suffered from heart disease, which was a "significant and contributory factor" in his death.

The former wrestler's body was riddled with scars -- which covered his forehead, both arms and his left knee. Get TMZ Breaking News alerts to your inbox

Doink the Clown Dead -- Ex-WWE Star Dies at 55

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Doink the Clown
Pro Wrestler Dies at 55

3:15 PM PT  TMZ has learned police in Plano, Texas ... where Doink's body was found ... have launched a homicide investigation.

However, sources tell us, the investigation is really just a matter of following S.O.P. -- and that all early indications are his death was accidental.

No weapons were found on the scene. An autopsy is pending.

Ex-WWE star Doink the Clown -- a hugely popular wrestler in the '90s -- was found dead today in Texas.

Doink, real name Matt Osborne, was known for pulling pranks on the other wrestlers ... all while decked out in full greasepaint and a green wig.

Details about Doink's death are unclear at this point -- but his girlfriend reportedly found him dead in her home ... where he'd been staying lately.

After leaving the WWE, he continued wrestling for ECW and independent leagues ... still sporting the clown costume.

More recently, he's been attending wrestling conventions and doing autograph sessions with fans.

Doink was 55.

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