Not surprising. You're on a forum full of techies and tech execs. It's like the people in Hollywood incredulous that #metoo movement was a thing because "they didn't know anyone like that!" until their coworkers and friends were outed.
Same here - techies shocked, _shocked_ that one of "their own" could commit a crime like this. Easier for them to talk about crime in general than lay blame at the feet on one of "their own".
What was surprising to me is that everyone seemed to move in mass that this was some "random stabbing". Random murders are exceptionally rare. What bothered me is this was another high profile murder of someone involved in crypto. There were a dozen murders that fit the bill that happened last year, and seemed way more likely.
The guy was stabbed in Rincon Hill. I don't consider that a crime ridden area.