and just like that, doris worley's murder grows cold. >> they felt like there was insufficient evidencemove forward with the case. >> with the heat off, john begins reconsidering his move to florida. >> john took the family dog and had him euthanized, then went and withdrew the children from school in the middle of the day and fled to costa. >> rica y costa rica. >> that's a good question. >> but not a surprising question. remember, paula was already in the central american country. a new life and a reunion for doris world's family. >> there's a big guy in a red shirt coming out. >> we tracked down the person of interest and main suspect, john and paula, now living as husband and wife. >> she is. >> in fact, we found a local newspaper article written in spanish that refers to the couple as parents to doris children, and they don't appreciate private investigators asking about their family. >> you know, he's coming here. >> he's coming here. >> they hold on. >> she's going in her pocket. and i feel good. i feel. >> get away. >> from the city. stay away from us. i'm going to call an attor