I know it's only a few hours after the shooting and that there's plenty that law enforcement is probably having to sift through, but tt's really unsettling to me that we haven't caught the shooter and have zero idea what the shooter's motivations were.
I know it's reckless to speculate but having had the extremely ignominious misfortune of having seen the video clip of the killing on social media, it seems to me that either the shooter was one of the luckiest shots I've ever seen or extremely well-trained and proficient. It appears that it was a single shot that hit Kirk in one of the smallest yet absolute worst places for a human being to be wounded- the area around the carotid and juglar, from what was apparently multiple hundred yards away.
Really scary stuff.