Tyler Robinson left obscure messages on bullet casings, but authorities have yet to find a clear motive for the killing.

Conservative activist Charlie Kirk came to Utah Valley University to engage students in debate. Within minutes, a gunman ...

Charlie Kirk's accused assassin, Tyler Robinson, was living with a transgender partner who is now cooperating with the FBI.

The Utah trade school student jailed on suspicion of fatally shooting right-wing activist Charlie Kirk faces formal charges next week, according to the governor, from an act of violence widely seen as ...