reason to doubt her story, there is a credible witness. here's what he had to say. >> there's no doubt in my mind that tiffany's saying the truth. tiffany, when we saw her, when she came over here, she was distraught. there was a -- one witness -- independent witness who had neff met tiffany before, who actually saw this, you know, commercial fishing boat chasing her. >> reporter: they're looking for some closure here. they want that body back. there was a memorial service here in the mcallen area last night but they feel like they can't have closure on this until they receive david's body. u.s. authorities don't want to go to that side of the lake. they have no jurisdiction there and they think it could become violent if they went over there, contessa to search. >> all right, janet. thank you. new terror concerns. france is warning of new terrorist risks. british authorities believe the risk of an attack is very light likely.