Kirk's death followed attacks in recent years on Trump, state governors, state lawmakers, members of Congress and even the US Capitol.

The killing of right-wing activist Charlie Kirk on Wednesday at a college in Utah is the latest in a string of acts of political violence in recent years that have spanned the political spectrum.

Political violence is hardly unprecedented in the United States. In fact, the country has “a long, dark history” of violence that has “struck the highest level of American politics,” said Kevin Boyle, a Northwestern University historian.

The assassination of Charlie Kirk at Utah Valley University reflects growing domestic political violence, including attempts on Trump's life and arson at governor's mansion.

Wednesday's fatal shooting of right-wing political activist Charlie Kirk is the latest incident in a recent increase of political violence in the U.S.

Utah Gov. Spencer Cox said that a family member of the suspect's reached out to a family friend who contacted the Washington County Sheriff's Office.

After Charlie Kirk’s assassination, Republicans and Democrats on Capitol Hill expressed extreme concern for the state of political discourse in the country.

Everything from threats to poll workers to the assassination of Charlie Kirk are examples of political violence that threaten democracy, experts say.

Distinguishing madmen and militants is never simple, but the Prosecution Project, led by Michael Loadenthal of the University of Cincinnati, analyses felony criminal cases involving political violence to see which ideologies are most common.