to 19 also confirmed dead. three other children, age 12 to 15 missing. the suv in which it was believed they were all travelling went off cliff in a remote part of north california went off the cliff and prior to that they had driven across the turnout no signs of braking or skid marks. police don t know why this happened. listen to a sergeant with the california highway patrol. we don t know if it rolled over the edge, launched over the edge, i won t have that information until we get the data back and analyze it and see what it leads too. reporter: the missing children are devonte hart, hannah hart. no sign, at the moment, of those three whatsoever. sandra: it s a mystery. meanwhile, one of the missing children may have been known to