PHOENIX — Authorities say there was no signs of foul play or trauma on the body of a man found at Lake Pleasant near Phoenix and the tentative manner of death is accidental.

Maricopa County Sheriff's officials say 34-year-old Joseph Casey was reported missing on June 21 after his car broke down at the lake about 35 miles northwest of Phoenix.

He reportedly was seen getting into a vehicle and trying to get a ride out of the desert to get help.

The decomposed body was found July 6 and the county Medical Examiner's Office identified it as Casey's on Monday.

Authorities announced Wednesday that an autopsy shows heat exposure was a significant factor in Casey's death.

Toxicology results haven't been released yet by the medical examiner's office.