Edgefield County has what they're calling a "person of interest" in custody after a body was found at the Augusta Lock and Dam last week.
They'll only say that Richmond County questioned the man today, but he has not been named as a suspect.
A fisherman found Ian Mosley's body floating in the Savannah near the Lock and Dam last Tuesday.
Investigators have been following leads here and in Gaffney, South Carolina, where Mosley was from.
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