"Echo," he mumbles, and it's pretty slurred together. Might be hard to make out.

Walter sees that he's being led away from the group, and, well. Sense is dwindling. All he can focus on is that members of the crazy cult are separating him from everyone else. And although logically, they are doing that for a good, medically sound reason, panic usually beats logic. Struggling isn't happening, but he is letting himself drag as dead weight.