mr. isikoff, there was some strange disappearance of the d.a. from the '98 case? >> reporter: right. that has been under investigation for years. i should point out that -- i talked to investigators that assured me this week this is an active and open investigation. i think that it's pretty clear, they're certainly getting tips and allegations that might -- suggest might be in some way related to this, but in fact there is no evidence after this point that we have -- >> we don't know there's -- >> but john martin, we do know -- >> we have no evidence of that whatsoever. >> but we do know this is the d.a. that has been missing that closed the case in '98. >> who in 1998 decided not to pri. they find his car, they never find his body, and there has been -- it's been a wild case for six years. no one can explain it. they say it's suicide, homicide or a walk away. now you have his friends, everybody is saying the new spotlight on this case. they're saying maybe if nothing else, there's a national spotlight, maybe we'll find out what happened to that d.a. ray gricar. >> we do know, before