The Gospels do complement each other by filling in what some left out, there are word differences within the stories (angel/young man) but none of this disputes an empty tomb. I will say this, the Jewish priest wanted Jesus dead and to stay dead, this is made clear in scripture, yet they never took the opportunity to open up the tomb to prove Jesus body was still there. If they had taken the opportunity they could have sealed the deal on christianity, they had the intelligence to do this, so why didn't they. Nothing was stopping them from opening up the tomb to prove Christ was still there. Why would these men who tried for three years to discount Christ, then when they could not they did everything they could to have Him killed and He was, did they miss such an open opportunity to prove He was still in the tomb. Everyone can throw out all their ideas to disprove the resurrection, but how do you get past the simple solution that the priest had to put away Jesus once and for all by opening the tomb.
God loves those who believe and those who do not and the same goes for me, you have no choice in this matter. That puts the matter of total free will to rest.
