When the United Healthcare CEO was murdered, some ex-special forces gunbeard called Garand Thumb did an analysis video on his YouTube channel. He concluded that the shooter was "a trained killer whose done this before". Not long after that, the truth was revealed. The shooter wasn't some real-life Agent 47, just a disillusioned rich kid with a homemade gun.
Anyway it doesn't matter. With sensational cases like this, there is little room for objective and rational discussion. Already a narrative has been established with Kirk's murder. "They" killed him.