Pilate had Jesus killed. As for your first question, they put a crown of thorns on his head and they put him on a cross and nailed him to it, later, when he was almost dead, they stabbed a spear through him.
He was already dead when the spear was jabbed in his side. It was a test, if he had shown any sign of life at that point both his legs would have been broken to accelerate death. Old Testament prophesy stated that the messiah would have no bones broken while on the "tree", so he had to be dead before the test with the spear.
Also you forget to mention the flogging prior to the cross that shredded his back and probably cost him over 2 pints of blood! In which condition he was required to carry his cross himself to the point of execution (until he stumbled and fell under its weight and the Romans allowed someone else to assist him).
Neither of those killed Jesus. Jesus died because he was crucified on the cross.
People who are killed for believing in Jesus are called martyrs
No specific person killed Jesus, but he was crucified on a vote of the people.
Jesus
Jesus was killed on the cross on a hil called Golgotha. The cross was punishment for top criminals, It was brought by the Romans from Asia Minor , todays Turkey.
Who Killed the Baby Jesus - 1992 is rated/received certificates of: USA:R
The Romans sentenced and executed Jesus Christ.
No he didn't.
yes
Jesus was in the new testament and not the old testament.
No they were Romans.
The spear that killed Jesus is believed to have been lost or destroyed over time. It is not known for certain what happened to it after the crucifixion.