the more you know. ♪ >>> for three long months britdbritd brittany tavar was just missing. f brittany or joe roberts, the young border who disappeared along with her. nothing, not a thing. and then, on october 12th -- >> he was caught in seattle in a grocery store in the area trying to steal lunch meat. >> his captor was a clerk in a grocery store. >> he wasn't a sheriff. he wasn't a police officer. he was somebody that was employed by a grocery store to deter theft. >> but it wasn't until after the seattle police showed up and arrested roberts on the shoplifting charge that they discovered this was one very wanted man. and so called the police in st. augustine florida. >> sometimes we just have to count on luck and sometimes we have to count on their mistake. in this case, i think he made a mistake and we had a little luck on our side. >> and then a little more luck. >> they had found brittany tavar's car parked in like a north seattle library parking lot. the keys had been locked inside of it actually. >> so, the police had the car but no brittany. it wasn't long before po