Nay but he is like him (Ουχι, αλλα ομοιος αυτω εστιν). Vigorous denial (ουχ) and mere similarity suggested. Associative instrumental case αυτο after ομοιος. The crowd is divided.

He said (εκεινος ελεγεν). Emphatic demonstrative (as in John 9:11; John 9:12; John 9:25; John 9:36), "That one spake up." He knew.