46 found dead in tractor-trailer in San Antonio, Texas | Nightline
Investigators said they believe the victims are migrants, part of a human-smuggling operation. WATCH NIGHTLINE EPISODES: https://abc.go.com/shows/nightline ALSO AVAILABLE ON HULU: https://hulu.tv/2wSmSrZ #nightline #migrants #smugglers #texas #investigation #abcnews source