but this time, ranger mankin and detective tschudy >> reporter: law enforcement 101.er, talk with the ex. but this time, officers are also messengers, arriving with bad news. >> you come at midnight, it's bad news. >> your son's fine. >> somebody else? >> that's what we want to talk about. >> reporter: the investigators, who were recording their conversation, preferred to tell bob about anna when they all went to the police station, but his persistence forced their hand. >> tell me what happened here? well, something happened to anna. well, what happened to her? >> anna's dead. >> what, what are you talking about? >> anna's dead. >> when? how, how is that possible? >> reporter: the cops, who at that point hadn't revealed how she died noticed that bob, unlike igor, will a strong response. >> his reaction seemed appropriate. >> reporter: he was upset. he was emotional. >> yes. >> my first thoughts were for igor. he's, like, 20 years old at this time, he just lost his mother. and they told me that he knew and he, you know, knew about what happened. >> reporter: bob agree

turn off the ac and give mankin of murdeffd in the summertime.at's going to be a really good idea. at will and throw some alcohol e at the bar at the end of the night. oh, yeah. be a fun. yeah. unfortunately, though, we all know that the russian chicks are going to beat everybody else up.o so. of thebably take most . >> liz wouldn't harm the athlete's performance, not having any air conditionin notg the summer. >> yeah, i can't imagine the spotlight. isn't this wifi cas ine? the french invented perfume to get sympathy? i don't knowinvented . e math they do the math. i mean, it's 300,000. taugh >> that's two a day for every athlete. they're going to that airnditio conditioning. >> yeah. you knowning.laughter, and. and by the way, what are w they going to have time to compete? i mean, by the wayay so electric air conditioning bed. but electric cars are good. i don'ectric at get it. >> i don't get it. a and all of the all the electricity used for all thosele tv stations networks getting that athletes in and out, that's okay. >> no air private jets t