Texas teenager on probation in deadly DUI is caught in Mexico with his mother For more: »»» Subscribe to CBC News to watch .
Authorities hold a news conference on detained Texas 18-year-old Ethan Couch and his mother who fled to Mexico. Couch is serving probation for killing four .
Affluenza teen Ethan Couch was captured Monday with his mother in sunny Puerto Vallarta Click here to read more: Subscribe to our .
Texas authorities announced at a news conference on Tuesday that Ethan Couch — the teen put on probation after using affluenza as a defense after killing .