A Texas teenager who avoided jail over a fatal drink-driving crash by claiming he suffered from "affluenza" has been detained by police in Mexico. <br />Ethan Couch, 18, and his mother Tonya were taken into custody in the west coast resort town of Puerto Vallarta. <br />An arrest warrant was issued earlier this month for Couch after he failed to report to his probation officer. <br />Couch became known for his unusual defence, which argued his privileged upbringing was to blame for the crash.
