The weeklong search for a missing Florida priest ended in rural east Georgia when authorities found what they believe to be the body of the Rev. Rene Wayne Robert.

St. Johns County Sheriff made the announcement Monday night in St. Augustine, where 71-year-old Robert was a senior priest for the Diocese of St. Augustine. The body was found in Waynesboro, Georgia, after the man arrested while driving Robert's car led police there.

Shoar said during a late-night news conference that the motive remains unclear.

On Wednesday, 28-year-old Steven James Murray was arrested in Aiken, South Carolina, after a manhunt. Shoar says Murray drove back and forth between Florida and South Carolina in Robert's car. Investigators believe Robert was killed April 10.

Shoar called Murray a "career criminal."

It's not known whether Murray has an attorney.