Investigators in Georgia have arrested the ex-boyfriend of a woman found dead earlier this month in a private lake.

The body of 54-year-old Collette Sease was found on March 3 at the lake, on private property, in Covington, the Newton County Sheriff’s Office said. Police were initially called for a possible drowning but later determined that Sease had been murdered.

On Monday, investigators executed a search warrant at a residence in Walton County, where they arrested 53-year-old Travis Abbott for Sease’s murder. He was also charged with concealing a death.

Investigators have not said where or how Sease died, but Abbott is expected to be transferred to Newton County to face the charges. A man walking around the lake on March 3 found the body and called 911, according to The Covington News.

The investigation remains open, authorities said.

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[Featured image: Travis Abbott/Walton County Sheriff’s Office]