If Keane doesn't have a daughter.
I've read several threads that stated that Damion Lewis, in a Q&A session about the movie, said that he believes that Keane did in fact have a daughter. I personally believe that was what Lodge Kerrigan was going for. It makes the character of Keane much more tender and human. I had a wild idea while watching the DVD though. If anyone has seen the DVD, there is an alternate version included. It's all the same footage, but edited in such a way as to paint Keane as a much more unbalanced individual that he is in the original version of the film. This got me to thinking... He shows a newspaper clipping to the clerks in the bus station of his "daughter," a story about the disapperance of a six year old. We then learn how the child disappears, while she went to get candy at the bus station. We later see Keane in his hotel room, pouring over the story of a New Jersey girl who was reunited with her parents, saved by her street smarts. What if Keane's "daughter" is actually a girl he kidnapped, who escaped from him by going to get candy, and leaving while he was occupied? This is the same girl he reads about in the paper.
I like the idea that he really did have a daughter (and beleve that was the director's intention) much better, and I know this theory has some holes, but it fits in the alternate cut pretty well. Any thoughts?