https://en.wikipedia.org/wiki/Industrial_Workers_of_the_World
The Industrial Workers of the World (IWW), members of which are commonly termed "Wobblies", is an international labor union that was founded in 1905 in Chicago, Illinois in the United States of America. The union combines general unionism with industrial unionism, as it is a general union whose members are further organized within the industry of their employment. The philosophy and tactics of the IWW are described as "revolutionary industrial unionism", with ties to both socialist and anarchist labor movements.
“The “victim” is a member of The Industrial Workers of the World (IWW)”
In other words, a professional violent communist agitator.