A gunman identified as Joe Jackson fatally shot 3 people and held a hostage at gunpoint in Chicago over what authorities are calling a patent dispute surrounding a toilet seat invention.
A gunman identified as Joe Jackson fatally shot 3 people and held a hostage at gunpoint in Chicago over what authorities are calling a patent dispute surrounding a toilet seat invention.
芝加哥,一名叫乔伊·杰克逊的男子开枪杀死三人，并拿枪劫持一名人质.据当地政府称，此次事件是由于对厕所坐便器发明专利归属问题的争吵而造成的。