It is part of their indictments:
https://www.washingtonpost.com/news...-charges-after-disrupting-black-childs-party/
"Monday’s indictment by the Douglas County District Attorney called the flag group “a criminal street gang” and accused its members of participating “criminal gang activity” on that day. The group members were charged with making “terroristic threats” against the party-goers."
https://www.washingtonpost.com/news...-charges-after-disrupting-black-childs-party/
"Monday’s indictment by the Douglas County District Attorney called the flag group “a criminal street gang” and accused its members of participating “criminal gang activity” on that day. The group members were charged with making “terroristic threats” against the party-goers."