The former blind man.
‘Where is he?’
‘I do not know.’”
καὶ εἶπαν αὐτῷ Ποῦ ἐστιν ἐκεῖνος; λέγει Οὐκ οἶδα.
John uniquely indicated that this Jewish group asked the former blind man (καὶ εἶπαν αὐτῷ) where Jesus was (Ποῦ ἐστιν ἐκεῖνος). He simply replied (λέγει) that he did not know (Οὐκ οἶδα). This Jewish group wanted to know where Jesus was, but the former blind man had no idea. After all, he had just met Jesus, and was not a follower of Jesus. Are you like a blind man who does not know where Jesus is?