Texas: ABC News features court deposition tapes of parents of DUI killer Ethan Couch in the “Afluenza” case

That night, Couch barreled down the road at approximately 70 miles an hour when he lost control of the truck, swerved into a ditch and plowed into a group of people who were helping a stranded motorist on the side of the road, killing four of them instantly, authorities said.