Sometime beforehand, an organization allegedly reached out and offered to sponsor the event, provided it made room for an additional band and security guards.
The event, which was allegedly organized by a group with ties to a right wing militia, reportedly agreed, but the sponsor was allegedly Sacha Baron Cohen, who was also the lead singer of the new band.
Basically, an event called March For Our Rights 3 was organized in Olympia, Washington.
Details about what exactly happened are still emerging, as it was a pretty chaotic situation, but the basic outline seems to be at least somewhat clear, as told by The Daily Beast.