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.
Information from: The Times, http://www.nj.com/times