CORPUS CHRISTI, Texas (AP) Authorities say an arrest warrant has been issued for a man suspected of stealing a vehicle that belonged to a New Hampshire couple found buried at a South Texas beach.
The Kleberg County Sheriff's Office said Tuesday that Adam Curtis Williams, 33, is wanted on felony theft charges.
Authorities believe Williams and Amanda Noverr might have had contact with James Butler, 48, and Michelle Butler, 46.
They released a surveillance photo of the pair crossing the border into Mexico in a car.
Kleberg County Sheriff Richard Kirkpatrick says police are working with Mexican authorities to locate the pair.
Officials have said the Butlers' deaths are being investigated as homicides.
Their bodies were found last week in a shallow grave on Padre Island, near Corpus Christi.
The sheriff's office had announced last week that the Butlers were reported missing, along with their truck and RV.
Relatives said the pair had been traveling the country in a recreational vehicle since June 2018 and was last heard from on Oct. 16.