Your belief that the Universe needed something to come into existence in the first place is fascinating!
If this were true, then something would have had to have created The Creator as well. I posit that the same malfunctioning part of your brain that believes in God has also attempted (poorly) to impose your human interpretation of your surroundings upon the actual functioning of the Universe, thus dumbing down its laws to your level of intellect. In this simplistic view of the Universe (where something all powerful created it, yet is not also subject to having been created by something even more powerful) the existence of God is of course possible, but only because you said so!
In reality, life and death are purely human concepts. Nothing is actually completely destroyed, merely converted to another state. The Universe had no beginning and it will have no end. Using this more general concept of the functioning of the Universe, where we do not impose our beliefs upon it, it is clear that God, in the form of The Creator, does not exist.