I think Croc should be the lynch.
1. You are an investigative role and Croc is an investigative role, I think that's too OP for a scum team to have
2. Croc's character is based off a sequel that occurred. I believe all our roles are original roles. I think that sets up his claim right
3. Croc might be the Ninja. Think about it. Stalker is a role discovering role and Speed claimed tracker. A Ninja is hidden from all tracking actions and he claimed cop. I think Speed strategically planned this out so that Croc seemed more believable
4. Speed was making a big emphasis on the entire premise on the OP between JK and Doc when it isn't OP. A Jailkeeper is basically an RB for what it's worth, but a Doctor is also a heal. I don't have a self doc (after asking with Drafter). This means that it's setup was intended to have these two roles