Story highlights Suspect in case turned himself in Monday morning, authorities say

Elrey Runion placed a Craigslist ad looking for a 1966 Mustang

He and wife drove to meet a man who responded to ad, relatives say

Atlanta (CNN) Two bodies, one male and one female, were recovered Monday in the case of a Marietta, Georgia, couple, who went missing after contacting a car seller on Craigslist.

The bodies have not yet been identified, said Telfair County Sheriff Chris Steverson. He said the couple's car was also found submerged in a nearby lake.

"It's not the outcome we had hoped for but, obviously, it's the one we have to deal with," Steverson said. "We'll analyze the vehicle, the bodies and hopefully we can come to some conclusion as to how they met their fate."

Earlier Monday, the suspect sought in the case who had posted a Craigslist ad turned himself in, the Telfair County Sheriff's Office said on its Facebook page.

Authorities have said that Ronnie "Jay" Adrian Towns, 28, was wanted on charges of giving false statements and criminal attempt to commit theft by deception. His family was integral in securing his surrender, Steverson said.

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