Associated Press

SAVANNAH, Ga. (AP) -- An autopsy has determined a Glynn County commissioner suffered a gunshot wound to the head before drowning in the Frederica River, where his body was found floating beside a docked boat.

Glynn County Coroner Jimmy Durden said Thursday he was still awaiting word from the Georgia Bureau of Investigation crime lab in Savannah on whether the death was ruled a homicide or suicide.

Durden also told First Coast News that Tom Sublett's hands were bound with zip ties.

RELATED: Chairman: Commissioner found dead Tuesday an 'inspirational leader'

Sublett's body was found early Tuesday on St. Simons Island after he failed to return home from a Monday night poker game with friends.

Glynn County Police Chief Matt Doering has said investigators found the commissioner's wallet with some items missing. Police have released few other details.

Glynn County Commissioner's death now being investigated by Georgia Bureau of Investigation

Sublett was finishing his first and only term on the Glynn County Commission after deciding not to seek re-election.

There will be a visitation tomorrow from 5 p.m. to 7 p.m. at St. Mark's Episcopal Church in Brunswick. The memorial service will be at 11 a.m. on Saturday at St. Marks.

In addition to his wife, Carol, Sublett is survived by four children - Grant, Reid, Leslie and Erin. Sublett also leaves behind two grandchildren.

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First Coast News' Erin Hawley contributed to this report.