Jesus was without question dead on the cross

John 19:31-42
It was the day of Preparation, and the next day was to be a special Sabbath. Yesterday is Maundy Thursday.
Other two peoples crucified with Jesus, the legs broken and the bodies taken down. The soldiers did not broke the legs of Jesus, but instead, one of the soldiers pierced Jesus's side with a spear, bring a sudden flow of blood and water. These things happened so that the scripture would be fulfilled.  Joseph of Arimathea asked Pilate for he body of Jesus. He was a disciple of Jesus, but secretly because the feared the Jews.
They taking Jesus' body, according with Jewish burial customs. They laid Jesus in a new tomb nearby, in which no one had ever been laid.
Why?
Even after the dead of Jesus is fulfilled as scripture said. So John once again proved Jesus is the son of God. And John was implying Jesus was without question dead
New tomb may decrease the doubt when Jesus arise three days later.
As a Jew, he could not help seeing special significance in the flow of blood (for sacrifice) and water (for cleaning).
How?
Jesus is shed his blood for us.