He threatened their position in Roman society, so they called for his death. Now the happy ending would be that Jesus would be victorious with his love and the things he was preaching. He would come back, take the place by storm, and the whole world would be won over by the proof. Not everyone was won over then. Not everyone is won over now.
Resurrection is something much more special than a magic trick.
Much more special than a supernatural appearance. You see, Jesus and Peter and all the rest of the disciples lost. The Jewish high priests won. The Romans won. The authorities, those who were in power, won.