Joseph ben Caiaphas, known simply as Caiaphas in the New Testament, was the Jewish high priest who, according to the gospels, organized a plot to kill Jesus. He famously presided over the Sanhedrin trial of Jesus. The primary sources for Caiaphas' life are the New Testament, and the writings of Josephus.
What happened to Caiaphas?
In the year 36 C.E., both Caiaphas and Pilate were dismissed from office by Syrian governor, Vitellius, according to Jewish historian Josephus. It seems likely that the cause of their dismissal was growing public unhappiness with their close cooperation.
Why did Caiaphas crucified Jesus?
He needed to prove that Jesus had threatened to destroy the Temple, which would have been both treason and an offence against God. But the witnesses couldn't agree on what Jesus had said. So that charge failed. Caiaphas decided to see if he could induce Jesus to utter blasphemy.