2. The Whisperers. We know the skinsuit wearers are coming, and they may actually already be here. There's a stylistic clue for this in the attack on Justin. That scene is filmed from the perspective of the assailant, like Michael Myers attacking his family in Halloween. The Whisperers wear masks like Michael Myers. The Walking Dead loves referencing classic genre films. Maybe the person Justin recognized was actually a Whisperer wearing a suit made of the skin of a Savior Justin knew and Justin didn't realize until too late because it was dark and he was drunk. Working against this theory is the fact that it would be a pretty weird coincidence for the Whisperers to only be picking off former Saviors. And it just feels too early for the Whisperers at this point in the season.