Jesus is either a liar, lunatic, or who he claims to be.
Jesus said "That is why I said that you will die in your sins; for unless you believe that I am who I claim to be, you will die in your sins." John 8:24
Here's some great resources to investigate Jesus:
(1) Great Website To Ask Questions <-- Ask your questions here and read articles
(2) Great Illustration of the Main Message (3 minutes video)
(3) Peace with God