Madeleine Wagih, 35, was working alone in Mahaba Pharmacy in Kom Ombo, a Nile River city of about 60,000 people in southern Egypt. A man charged into the shop, brandishing a pocketknife. He stabbed Wagih in the throat, severing an artery. She bled to death quickly, said the Rev. Rofael Rizk, a Coptic Orthodox priest in Kom Ombo.