what do they do? >> they suffer from the same problems and obstacles normal every day couples have. yet, it is times 1,000 because of the pressure of being on the run. it might lead for one of them to break down or get into a fight and storm off and in the heat of the moment. >> reporter: john mccluskey was previously convicted of second-degree murder. if he makes his way back to his mother's place in arizona, he has this warning from his own distraught stepfather. >> i told the u.s. marshals i haven't got that long to live. if i ever see you, what you did -- i will shoot you. >> officials tell us that they no longer believe john mccluesy and welch are in yell stone national park and never evacuated the park even when they believed were inside because the place is too big. fws the size of delaware and