overnight. investigators are trying to figure out why a military transport plane crashed in rural mississippi. the plane, a c-130, considered the workhorse of the u.s. military, it slammed into a soybean field and burst into flames immediately. all 16 people aboard are believed to have died. nbc's hans nicholls is following the story from the pentagon. hans, what happened? >> reporter: well, they don't know. there's one report that there may have been an engine failure, but a plane like this, it's got four engines, a turboprop, a kc-130, a refueling aircraft. as you said, it's a workhorse. these are planes that have flown thousands of hours with trained an seasoned pilots, a full crew. we do know where it originated from, cherry point, the marine air station in cherry point, north carolina. they're not giving a squadron details yet because they need to notify the next of kin. the investigation will continue and accelerate throughout the day, stephanie. we heard the president himself tweeting about this saying his condolences go out to those