Complex sentence: Four hours after the incident, West Yorkshire Police announced that Cox had died at Leeds General Infirmary, making her the first sitting MP to be killed since the assassination of Ian Gow by the Irish Republican Army in 1990.
Split into simpler sentences: Four hours after the incident, West Yorkshire Police announced that Cox had died at Leeds General Infirmary. Cox was the first sitting MP to be killed since the assassination of Ian Gow by the Irish Republican Army in 1990.