Matthew Chapter 11

Mt.11:2 And when John had heard in prison about the works of Christ, he sent two of his disciples
Mt.11:3 and said to Him, “Are You the Coming One, or do we look for another?”

When I read those two verses I asked myself: Why does John still ask Jesus, whether he is the one to come or not?? Didn't he experienced it himself that Jesus is the one to come?:

Mt.3:13-17
[Mt.3:13 Then Jesus came from Galilee to John at the Jordan to be baptized by him.
Mt.3:14 And John tried to prevent Him, saying, “I need to be baptized by You, and are You coming to me?”
Mt.3:15 But Jesus answered and said to him, “Permit it to be so now, for thus it is fitting for us to fulfill all righteousness.” Then he allowed Him.
Mt.3:16 When He had been baptized, Jesus came up immediately from the water; and behold, the heavens were opened to Him, and He saw the Spirit of God descending like a dove and alighting upon Him.
Mt.3:17 And suddenly a voice came from heaven, saying, “This is My beloved Son, in whom I am well pleased.”]

So I think after John saw this, he should have known that Jesus is the one to come....
What do you think??