>> reporter: tom kolman's cause of death was still a mystery. but detectives now had a juicy love triangle smack in the middle of their investigation. they asked linda to come down to the station to share her side of the story. >> i told 'em everything. i didn't care anymore. at that point, i wasn't hiding a thing. >> how did you meet gilberto nunez? >> i met him at my son's kindergarten orientation. >> he had a child in the same kindergarten class. >> he had a child in the same kindergarten class. right. >> a son? >> yes. >> reporter: that was in 2009, gil was married then. and the two couples started socializing. >> we all seemed to like each other and we're friendly and, they would just say, "hey, wanna go out to dinner," whatever, and okay. >> and then, you started to get to know him better? >> over time, yeah. >> through school events, or? >> through that and then, our sons both did karate together. they were in the same karate class. >> reporter: tom and gil also