CREEK COUNTY, Oklahoma - A man whose body was found after a four-day search in Creek County over the summer died of a drug overdose, according to the medical examiner.

David Lane Howard, 19, disappeared after hiking and swimming with friends on July 31, 2016.

Howard's body was found near a utility easement near 61st Street and 481st, east of Oilton. Heat and thick brush complicated the search.

On Tuesday, November 29, 2016, the Chief Medical Examiner released the autopsy report on Howard's death. It lists the cause of death as acute intoxication by methamphetamine. The ME also said hyperthermia was a significant condition.

The ME said there was no lethal trauma to the body. It classified the death as an accident.