End of ch15

So, I just finished the last chapter and I'm a little confused. I'm sure that it wasn't clarified explicitly, but maybe it was implied at some point and I didn't understand it.

Who are the ppl who kidnapped chief when Jelena went to rescue her? Who is the lady that gives pine those pics that also drives Jelena at the end? Who's the blonde one that wanted to meet chief so badly? And who were those two that were talking abt deals and a runaway sister?