The most bizarre knife in the world

This knife was cast by a mad Italian blacksmith, he used the bone of his wife’s right hand for the handle, and his son’s rib for the blade; also used his own shin bone as a handle, and then donated it to his creditor at that time. Three days later, this creditor went mad and burned everyone in his family. It is known that the people who received this knife then also went crazy. It was cursed because not only the people who owned it went crazy, but their entire family died