Modifying reputation loss?

So I'm at a small crossroads with this playthrough. I like killing Shandalar (using the wand of paralyzation tactic) because it's a crazy exp bump and just on a moral standpoint I have issues with his quest.

My only small issue, is I'm in the middle of the Dynaheir NPC project romance, and I have no way to kill him without lowering my reputation to 10 and also ending the romance.

My question to you guys, because after poking around in EE Keeper i couldn't find it, what variable makes it so you can kill a NPC without losing reputation? I was hoping to just change that real quick for this playthrough.

Thanks guys