Not to be an ass or anything but there is so much information out there on the life (and death) of Tutankhamun one only has to type in three letteres in your search engine to access hundreds and hundreds of webpages....T..U...T! (if you type in his proper name you will get even more). In fact you have already found one! Search around and read the posts here as well as the info on kingtutone.com and you will begin to get a good idea of not only how this boy king came to power and the state that Egypt was in upon his ascension to the throne, as well as the mystery that surrounds his death and the after math of his short reign.
A pretty good description of his life can also be found in just about any book discussing the history of the whole of Ancient Egypt.
Do a little research and come back with some specific questions and you will have a bunch of people that would be more than willing to answer some legitimate questions instead of..."I need help with my report"...that's kinda lame don't you think?