his name was nick wheeler. like levi, he was another handsome police officer in the pd. s flew. >> what drew tera to this guy? >> his personality. he treated her great. another guy that comes in and is nice to her, and shows her attention. and treats her good. >> and you've got the recipe for an affair? >> exactly. >> but there was a problem, tera was married to levi, and nick? >> he was married to a friend of ours. >> a friend of yours? >> yes. a big, messy triangle. >> and they said it wouldn't get in the way of the investigation. he was going to take a long look at his friend. and he was gonna go over something that now seems suspicious. the night tera was found, nick had caught him digging for information. >> probably within an hour of being on the scene. i got texts and phone calls from him. >> nick wants to know what? >> i wasn't sure at first. he was asking questions about what was going on, if i knew anything. >> wasn't it concerned about keeping his affair with tera under wraps? or something else? melanie told the detectives that tera had broken things off with n