Killed By A What?

Today I read an article in the Duluth News Tribune about an incident that happened in Spring Valley, Wisconsin last year on the 4th of July.  This is just such a strange story you know it's not fiction.  A local farmer hears noises at the neighboring farm.  She thinks she hears the sound of a cannon over and over again but she doesn't complain because she doesn't want to disrupt the party.  The next day she goes into her barn where she finds a hole in the roof of the barn and a bowling ball in hay of the horse stall.  She calls the police to complain.  Later she finds one of her horses dead in the pasture with a bump on it's head and a bowling pin nearby.  She finds bowling pins and bowling balls all over the pasture. Police investigate the matter.  The neighbor admits her brother was firing a cannon at her house at her 4th of July party.  She said he said it was safe.  She said he said all the bowling balls would land on her property and be buried deep into the soil.  Well, he was wrong.  He was so wrong he put a hole in the roof of a barn and killed a horse with a bowling pin.  He killed a horse by shooting a bowling pin out of a cannon.  Geez!  What are the chances?  And why can't I be invited to fun parties where cannons are fired?