Three people including two Mexicans face federal charges after a trailer full of dead and injured illegal immigrants was found Monday night in San Antonio. San Antonio PD Chief William McManus says the suspects are in federal custody and that Homeland Security is leading the investigation of the case. At least 51 migrants died inside the hot, abandoned semi-trailer. The 39 men and 12 women were from Mexico, Guatemala and Honduras. Investigators described "stacks of bodies" inside the tractor-trailer and others, some hot to the touch, had collapsed nearby.