U.S. authorities say a Guatemalan man has pleaded guilty in federal court to a felony offense stemming from the crash of human smugglers' truck in Mexico that killed more than 50 migrants in 2021. Authorities say that 42-year-old Daniel Zavala Ramos pleaded guilty Wednesday in U.S. District Court in Laredo, Texas, and acknowledged his involvement in trying to smuggle migrants from Guatemala via Mexico to the U.S. He faces a possible life sentence. Authorities said at least 160 migrants were packed into the truck when it overturned in southern Mexico in December 2021, killing at least 53 people and injuring more than 100 others. Five other Guatemalans also are charged.