Early Bulletin Said Ammunition in Kirk Shooting Engraved With Transgender, Antifascist Ideology; Some Sources Urge Caution
https://www.wsj.com/livecoverage/charlie-kirk-shot/card/pdymd1sXXMSlVRhpvR4b
It sounds like a bulletin was indeed circulated, and it sounds like the WSJ is being pretty candid about the law enforcement response:
Law-Enforcement Officials Sow Confusion on Manhunt for Kirk Shooter /
Contradictory public statements risk undermining confidence in investigation, law enforcement veterans say
https://www.wsj.com/us-news/charlie-kirk-shooting-manhunt-e7f3eae4