For what it's worth, I was right there a week before for a Jewish wedding - well, one of the ceremonies associated with it. My nephew (not Jewish, marrying a Jewish woman) was to read from the Torah as part of a "regular" Saturday service. We attended and participated (?) in the full service. At the end it was first announced that there would be a reception for the couple - as part of the normal lunch or whatever they usually had - and THEN they spent 15 minutes talking about precautions that would be taken for the next week.
All I am saying is that they knew what what was coming. There were clearly outlined plans for services and their timing, security that would be in place, and even what would be done with their copy of the Torah (it was removed to another location). At the time I thought it was a bit overblown.
A week later I saw what happened, and all I could think of was how prepared they were. It may not have been all about the Jews, but torches were carried right in front of that synagogue. They were prepared for what they expected, and they weren't wrong.
All the above aside, I hate what's going on, and any peaceful solution >>> what's happening now. I just don't know what that looks like.