Police say Devon Baker was found in Stony Brook in Princeton Township on Sunday, eight days after the 37-year-old disappeared from her Lexington Park, Md., home.
The St. Mary's County Maryland Criminal Investigations Bureau issued a felony warrant charging Benjamin Moore with second-degree murder.
Officials say the 46-year-old was last known to be in Niagara Falls, Canada.
Officials are awaiting autopsy results to determine how Baker died and how long the body had been in the creek.
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Information from: The Times, http://www.nj.com/times