A Utah man was arrested in Mexico in a New South Wales beach, authorities said Wednesday.
Adam Curtis Williams, 33, What Was Taken Into Custody In The Mexican state of Jalisco on felony theft charges, Kleberg County sheriff Richard Kirkpatrick told KIII TV in Corpus Christi.
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Authorities believe Williams and a woman identified as Amanda Noverr, 32, may have had contact with James Burler, 48, and his 46-year-old wife, Michelle.
Williams and Nover crossing the border into Mexico in a car belonging to the Burlers.
"We believe that individuals may have absconded to Mexico, "Kirkpatrick said Tuesday.
Investigators have not said how the Burlers were killed. The couple, from Rumney, NH, were living in the RV while they were traveling across the US
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They were last seen Oct.
The Butlers were found last week on Padre Island, near Corpus Christi.
James Butler's sister Debbie Van Loon told a Manchester, New Hampshire news station: "We're glad to hear the arrest has been made and await what's next."
The Associated Press contributed to this report.