DES MOINES, Iowa —
Conservative activist Charlie Kirk was shot and killed Wednesday at a Utah college event .
The death was announced on social media by President Donald Trump, who praised the 31-year-old Kirk, the co-founder and CEO of the youth organization Turning Point USA, as "Great, and even Legendary."
"No one understood or had the Heart of the Youth in the United States of America better than Charlie," Trump posted on his Truth Social account.
Shortly before 6 p.m. CDT, Utah Gov. Spencer Cox told the Associated Press that a "person of interest" was in custody, but no charges were immediately announced.
Iowa governor orders flags at half-staff in memory of Kirk
Gov. Kim Reynolds has ordered all flags be flown at half-staff, effective immediately, until sunset on Sunday in me