What kind of job can I get at the FBI, hoping to eventually work at the BAU, with a Juris Doctorate?

I'm currently a history major (when I chose the major, I had no life plan) and I'm contemplating getting a law degree. I've been doing research into working with the FBI and I find a lot of information that the FBI likes people with a law degree. What I don't know, does the FBI hire people with a law degree just to be federal prosecutors? Or do people with a J.D. have multiple options in the FBI, say working my way into the Behavioral ysis Unit.