Attention: Spoilers!

Accidentaly killed the Sload during the "Kill the Sload"-Quest

So for some reason I thought I had to kill the Sload instead of speaking to him. I didn't realise that the quest failed until it was too late. I have already done quiet many other quests thus I can't just load the last save. What can I do to solve this issue? Does anyone have the id of the sload, which i could use to revive it with the console?