OREM, Utah, Sept 11, (AP): Charlie Kirk, a conservative activist and close ally of President Donald Trump who played an influential role in rallying young Republican voters, was shot and killed Wednesday at a Utah college event in what the governor called a political assassination carried out from a rooftop. "This is a dark day for our state.

It’s a tragic day for our nation," said Utah Gov. Spencer Cox. "I want to be very clear this is a political assassination.” No suspect was in custody late Wednesday, though authorities were searching for a new person of interest, according to a law enforcement official familiar with the matter who was not authorized to discuss the situation by name and spoke on condition of anonymity.

Two people were detained earlier in the day but neither was determined to have had any connection to the shooting and both have been released, Utah public safety officials said. Authorities did not immediately identify a motive but the circumstances of the shooting drew renewed attention to an escalating threat of political violence in the United States that in the last several years has cut across the ideological spectrum.

The assassination drew bipartisan condemnation, but a national reckoning over ways to prevent political grievances from manifesting as deadly violence seemed elusive. Videos posted to social media from Utah Valley University show Kirk speaking into a handheld microphone while sitting under a white tent emblazoned with the slogans "The American Comeback” and "Prove Me Wrong.”

A single shot rings out and Kirk can be seen reaching up with his right hand as a large volume of blood gushes from the left side of his neck. Stunned spectators are heard gasping and screaming before people start to run away. The Associated Press was able to confirm the videos were taken at Sorensen Center courtyard on the Utah Valley University campus

. Kirk was speaking at a debate hosted by his nonprofit political organization. Immediately before the shooting, Kirk was taking questions from an audience member about mass shootings and gun violence. "Do you know how many transgender Americans have been mass shooters over the last 10 years?” the person asked. Kirk responded, "Too many.”

The questioner followed up: "Do you know how many mass shooters there have been in America over the last 10 years?” "Counting or not counting gang violence?” Kirk asked. Then a single shot rang out. The shooter, who Cox pledged would be held accountable in a state with the death penalty, wore dark clothing and fired from a building roof some distance away to the courtyard where the event took place.