Article continues below advertisementCharlie Kirk, a rightwing activist who was known for being an outspoken ally to Donald Trump, was fatally shot while speaking on a university campus on Wednesday, September 10.Scroll down to learn more about the late star.Article continues below advertisementWho Was Charlie Kirk?Source: MEGACharlie Kirk was the founder of Turning Point USA. Kirk was known for founding Turning Point USA, an organization that advertises itself as the "largest conservative movement," per its official website.