How can children of a deceased parent find out if they were left anything?

Question Details:

My father died 5 years ago. My brother received a lot of money but my twin sister and I did not get a thing. My father and I were very close and he was an extreamly fair man. When he died my brother took over. However, my father would not leave any inheritance in the decision of my brother. He would divide it fairly among us all. I smell foul play. What do I do; can I find out on-line any record of his Will? Important Notice