Well I've done all investigation, I've talked to Jon who tellsa me about the spectres, I've talked to the guy in the gun shop which shows me the stuff about the spectres. At this point all I need is proof that it was mordre.
The problem is for starters that Jon never told me that someone who looks like mordre was asking that same thing 2 months ago like he's supposed to. I imagine that is what gives me the option to confront mordre about it.
As it is I have no way to confront mordre, reguardless of having enough persuasion or not. I cannot pickpocket mordre to get his badge as a proof. I cannot "accidentaly" kill him with mine because my skill is not high enough to place high level traps and mordre is apparently superman surving 11 traps and the TNT. Also lenox does not accept all the evidence I give him and me pointing to mordre because I simply have no reason to imply specificly mordre, he just tells me he thinks that's not enough evidence.