I think the reason why God allows people to die and suffer because of free will. Think about it. How can aids be spread? Through sexual behavior/dirty needles/born with it from parents. So, God states in the bible that people should stay a virgin until marriage. (I personally am not and am a christian, but that is neither here nor there.) So, if people would not have had premarital sex, aids would not have spread around. People would not have died. Its like Gods way of punishing those who don't do what he says. I mean there are plenty of cases in the old testament where God killed peoples kids for being unfaithful. Besides, if God saved everyone then that would mean the end of the seven years of tribulation. One day, everyone in the world will know that God is God. Its just that that time isn't today or tomorrow or anytime soon... so people will continue to die, and God will continue to allow people to die. Just my take on the matter.