@revelette3,
Actually, we have a clear reason that Jesus died. But it's not the one everyone understands.
There are actually two reasons that Jesus died.
First, Jesus himself gives us the answer. "For just as Moses lifted up the serpent, so also the Son of Man must be lifted up." Reading back about Moses, we find a rather strange passage. The Jews were getting bitten by venomous snakes after constant complaining. So God literally instructs Moses to make an idol. The Jew look at the snake on a pole symbol and they become healed. Likewise, Jesus is intended to be raised (on the cross ) to draw attention to how God took our sins on to himself.
I personally don't think Jesus's status as Messiah is relevant. The Jews deny it, and what is more relevant is that he is something else entirely. A Savior.
Okay, so I promised two reasons. The second is hinted several times but never said. Jesus is Emmanuel, "God with us." This means that his entire life was to show that God came to be a part of humanity. Unlike most people, I do not believe it was necessary for God to die on the cross. In order to do what he really came to do, which is "tear down the curtain" between God and man, he simply had to (1) be born and (2) die. Doing this would be enough to ensure that human beings would have the ability to experience Heaven, and to be reconnected with God. The problem is, humans need atonement, and such and action does no good to those trapped in sin. So Jesus needed to be a sacrifice, in order to draw attention to the fact that our sins are being forgiven. That someone has paid the price. It wasn't that Jesus had to die on the cross for our sins. He could have chosen any death. It's that this was the best option to remind us that he took the curse of the law for us.