Peritonitis can come from appendicitis, ruptured intestine, spleen or some
other form of infection in the abdominal cavity...a person generally would
present with fever and "chills" along with adbominal pain. It would be
difficult to explain what type of foolishness had led to this unless he had
refused to see a doctor at the first onset therefore was seen as being
foolish or had engaged in a fight or activity that had led to a severe blow
to the abdomen thus causing injury. Good luck in your search.
Sincerely
VCaldwell