He was later released and charged with obstruction by UVU police," the Utah Department of Public Safety said in a bulletin released late Wednesday.
"A second suspect, Zachariah Qureshi, was taken into custody and released after interrogation with law enforcement," DPS said.
Initial efforts to inform the public about the investigation were complicated Wednesday when FBI Director Kash Patel took the unusual step of announcing on social media that the "subject" in Kirk's killing had been taken into custody.
"The subject for the horrific shooting today that took the life of Charlie Kirk is now in custody," Patel had written.
Patel did not identify the suspect at the time, so it is not clear whether he meant Qureshi or Zinn.
"The Great, and even Legendary, Charlie Kirk, is dead," Trump wrote in a Truth Social post.
Jack Schlossberg, whose grandfather, President John Kennedy, was assassinated in November 1963, wrote on X, "Charlie Kirk was assassinated today. »