On Thursday night, former President Donald Trump made a comment about former Rep. Liz Cheney (R-Wyoming) staring down multiple rifle barrels during a conversation with far-right pundit Tucker Carlson. That comment could result in a criminal indictment. Phoenix-based NBC affiliate KPNX is now reporting that Arizona Attorney General Kris Mayes (D) has opened a criminal investigation into whether the ex-president’s remarks could be classified as a death threat. Mayes told local reporters that her office is taking Trump’s comment seriously. “I have already asked my criminal division chief to start…