Note 10 at Mk. 14:64: As mentioned in note 6 at Mark 14:53, page 456, it is probable that Nicodemus was present at this mock trial. If so, Mark says that "they all condemned him to be guilty of death." That would mean that Nicodemus participated in this sentencing. Yet, we find that Nicodemus brought sweet spices to anoint the body of Jesus for burial this same day that were worth thousands of dollars implying that he certainly felt differently about who Jesus was than the rest of the Sanhedrin.

It is possible that Mark's use of the word "all" in verses 53 and 54 was similar to the way He used it in Mark 1:5 (see note 6 at Mk. 1:5, p. 32) or that Nicodemus was not present at this trial.

It is also possible that Nicodemus denied what he felt in his heart and voted with the rest of the Sanhedrin out of fear of persecution even as Peter denied Jesus during the same time.

Maybe Nicodemus repented as he witnessed the crucifixion and saw Jesus' love for the very ones who killed Him. There is no way to know for sure with the limited information that we have what really happened to Nicodemus.