Welcome to Hillary's america, at least these weren't paid for hire agitators.  This issue isn't unique to Eugene, sadly this type of mob mentality is is becoming the new normal especially in more "liberal" cities which is supported statistically.  

Equally sad is Police Officers doing their jobs have increasingly become targets to the mobs when more often than not, they are simply doing their jobs.   I actually pray and worry for our future as a nation.    Law, order, civility,  respect, integrity are slowly becoming things of the past and are the enemies of the Progressive movement.