Haywood death ruled accidental

The Tarrant County medical examiner’s office released results of the autopsy on Cowboys’ running back Ennis Haywood, who died suddenly in May.

The report rules the death an accident, caused by a mixture of drugs and ethanol and was complicated by his asthma.

“Although the mixed ethanol and drug ingestion was the primary cause of death, a significant condition contributing to the death was bronchial asthma,” the office said in a statement issued Friday.

Haywood was taken to Medical Center in Arlington after he began vomiting in his sleep.

An initial autopsy did not reveal a cause of death, so tissue and toxicology tests were scheduled.

The medical examiner's office ruled the cause of death to be “mixed ethanol and drug ingestion (codeine and unidentified benzodiazepine).”

It also confirmed what his mother, Carol Haywood, said at the time -- that her son could have been a victim of asthma.

Benzodiazepine is sometimes used as a treatment for asthma. Ethanol is a form of alcohol that is used in beer and whiskey.