Missing 18-year-old found dead under drain pipe in south suburbs, sheriff says

CRETE, Ill. (WLS) -- A missing 18-year-old was found dead in a wooded area just three days after he was reported missing in the south suburbs.

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Samuel N. Green of Crete was reported missing on Thursday, according to the Will County Sheriff's Office.

Green was found dead on Sunday underneath a drain pipe in a wooded area in the 23000-block of Plum Valley Drive in Crete Township, officials said.

The 18-year-old's cause of death has not been released. The Will County Coroner's Office performed an autopsy, and said final cause and manner of death will be determined following autopsy, police and toxicological reports.

"The Sheriff's Office would like to extend our deepest sympathies to the Green family, their relatives and friends," the sheriff's office said.

The sheriff's office is investigating.