FORT WORTH - The mother of a fugitive teen who used an "affluenza" defense after killing four people in a drunken crash has arrived at a North Texas jail.

Video footage showed Tonya Couch exiting a vehicle Thursday inside the Tarrant County jail in handcuffs and leg irons, accompanied by Sheriff Dee Anderson.

Couch faces a charge of hindering the apprehension of a felon. She's expected to be arraigned Thursday afternoon.

Her son, Ethan Couch, remains at a holding facility in Mexico City.

Authorities believe she and her son fled Texas in November as prosecutors investigated whether Ethan Couch had violated his probation in the deadly 2013 drunken-driving wreck. Couch received only probation after a defense witness argued that Couch had been coddled by his wealthy parents, a condition the expert called "affluenza."