Anakso could have been the target just as easily as the killer last night, so that means little to nothing.
Since no one else has claimed Jack, I'm trusting that Dyra who (s)he says (s)he is.
Anakso originally looked to be budding up to Lysah and voting with her. Then Lysah point this out, and since then you've been in suspicious voting position (4th on Lysah and 3rd on Treann). All in all, it may only be circumstantial, but with time running out,
Vote Anakso