If left untreated and allowed to bursts then yes the appendicitis can kill you.
If you have symptoms of appendicitis such as pain in the abdomen than can be either dull or sharp and the pain from appendicitis can be either in the right lower abdomen or mid abdomen or in the abdomen itself.
Other symptoms of appendicitis include chills, fever, loss of appetite, or malaise and diarrhea, nausea, or vomiting.
If you experience symptoms of appendicitis and you think your appendix is about to burst you need to get to the emergency room right away so they can treat you and perform surgery to remove the appendix before the appendix does bursts and potentially kills you.