When I first saw the title of this thread, I thought of the Cold-War era phrase "the Red Menance" used to describe Communism.
Could "Red Terror" have been linked to anarchist groups? We've heard of the Black Hand and other such groups; could the paper have been invoking something along those lines?
I also keep thinking of the famous cartoon of the Ripper as a cloaked corpse holding a dagger and stalking the poor inhabitants of Whitechapel.
: Jack the Ripper plays shuffleboard. -- Happy Birthday, Wanda June
by Kurt Vonnegut, c.1970.