Apparently the commie dem came down to try to kiss up to the rioters, chanting blm with them, but they started chanting for him to resign, then started throwing rocks and objects at him, his security detail had to rush him into a nearby building to protect him. The rioting dems kept throwing things at the building. While he was entering the building the federal troops fired tear gas to try to disperse the dems, but some unfortunately....heartbreakingly....hit the dem commie mayor.
Dems eat their own better than anyone.