The latest in the case of a Texas teenager serving probation for killing four people in a drunken-driving wreck after invoking an "affluenza" defense (all times local):

1 a.m.

Authorities say a teen fugitive known for using an "affluenza" defense and his mother are scheduled to depart for the U.S. after a phone call for pizza led to their capture in Mexico.

Eighteen-year-old Ethan Couch and his mother, Tonya Couch, were being held at immigration offices in Guadalajara on Tuesday. An immigration official who is not allowed to be quoted by name told The Associated Press they were to be returned to the United States aboard a commercial flight to Houston Wednesday.

Couch was on juvenile probation after killing four people in a drunken-driving wreck.

Authorities began searching for the pair after Ethan Couch missed a mandatory appointment with his probation officer on Dec. 10.

Once returned to Texas, Couch will be held in a North Texas facility until a probation violation hearing Jan. 19.

Tonya Couch faces a two- to 10-year sentence if convicted of hindering apprehension.

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Associated Press writers Elizabeth Rivera, Emily Schmall, E. Eduardo Castillo, Peter Orsi and Mark Stevenson contributed.