Cars drive past a building where Ethan Couch, 18, and his mother Tonya Couch stayed at in the Pacific beach resort of Puerto Vallarta, Mexico December 29, 2015. Ethan Couch, the rich Texas teenager who fled with his mother to Mexico to avoid possible jail time for violating his probation in a drunken-driving crash that left four people dead planned the flight and even held a farewell party, U.S. authorities said on Tuesday. REUTERS/Henry Romero