case. this was a case yesterday, if it were not for stacy peterson s disappearance you may not have those hearsay statements and you may not have a conviction in the murder of kathleen savio for drew peterson. so a lot of folks believe these were the critical junctures, critical hinges that got the case through. and yes, james glascow says he is not through with drew peterson yet. we are going to aggressively review that case, you know, with an eye towards potentially charging it. reporter: but the key difference between the kathleen savio case and the stacy peterson disappearance is that there is no body unfortunately. if you presume that sayssy peterson is dead there is no body recovered. that makes the case infinitely more difficult when you talk to police and prosecutors. heather? heather: steve brown reporting live from chicago, the thank you.
series. i want to thank everybody that stood behind us on this. feeling of joy right now is bittersweet. like i said before. i will never have my sister again. i have to go see her in a cemetery. at least i know i go justice and a got a cold-blooded killer. heather: the words of nick savio, the brother of kathleen savio who died back in 2004. her former husband, retired cop, drew peterson, now found guilty of murdering her. but could drew party drew peterson be charged in the disappearance of wife number four? they re reviewsing the case of his missing wife stacy. she disappeared five years ago. steve brown joins us live from chicago with the very latest. hi, steve. reporter: hi, heather, yes. we understand the prosecutor in this particular case, glams james glascow is looking at this particular