"The FBI was offering assistance" (*In other words, they said they could help) "but was not actively investigating" (*but that they couldn't help a lot) "because there was no evidence Danielle had left California, spokeswoman Jan Caldwell said." (*this means, it's not their jurisdiction. Wait, that's a pretty big word. Let's just say it's not their JOB to help unless she'd been taken to another state.) Hope this helps.