Well, BD has been trying to point LE at Clint since the start with SA's bs story, then her "inaccurate" interpretation and unauthorized revelation of the bloodhound results (later rescinded), then the red earring red herring, then on to the bogus hairdresser sighting of Hailey with a 7 year old AA boy...
So, I'm betting mystery man is associated primarily with Clint (maybe someone who he did time with way back when and kept in touch with up until a year ago) or NS (ex-boyfriend or something..). I think this is just one more sorry attempt to get her butt and SA's off the hot seat, no matter who she hurts..
FWIW: At the start of this case, both Hailey's parents were on my radar - always need to be until ruled out. Neither gets a pass from me on the apparent instability in Hailey's home life. But, LE, who has arrested Clint for minor drug offenses twice in the past year and knows he had problems with the law in his youth, don't seem to have any suspicions whatsoever about him. He checked out, imo. Billie, on the other hand, keeps launching thinly veiled insinuations that Clint's home is the one that should be looked at more closely. At this point, I truly believe Clint has nothing to hide and Billie has nothing to lose by pointing fingers here, there, and everywhere. She is not concerned about pointing in a direction that will lead to her daughter, she is concerned only about pointing in a direction that leads away from "her house". JMO and speculations based on the trends in this case... It's only a month old, and there are already some definite patterns when it comes to BD's stories...