something interesting i noticed, and pure speculation, so imo.
"if anybody out here can find anything, i am all for it..."
just want to mention (once again) BM's indefinite pronoun usage.
this kind of language is not dissimilar to "where is it," when asked if he was having an affair, as well as "this thing" when referring to the disappearance/death of his wife saving one person's life.
i'm no expert, (i just play one on websleuths lol), but i'd say his choice of words tells us he is so far distanced from not only his wife, but her disappearance, too. he will not say her name, he did not mutter it once in his conversation with tyson, but he also cannot speak about the search. you'd expect him to say "if they want me to help with the search, then i'll help with the search. instead he says "if they ask me to help, then i'll help," leaving it really open-ended as to what he wants to help with. he is bothered, y'all.
i think he's feeling some guilt, actually. wouldn't that be a major reason you wouldn't be able to say those important words, as opposed to just being a psychopath? c'mon BM, spill it. the walls have got to be caving in every hour this search gets closer. makes me kinda scared for the people around him.