There are multiple artists called Hangman:
These are photos from concerts where Hangman played, so they may be of other bands that played the concert as well.
Harms Way / Portrayal of Guilt / Fuming Mouth / Hangman / Maniac / Steel Grave Aug 16, 2019 Hartford, Connecticut, United States Uploaded by Bigtravsburnerphone
Death Threat / Hangman / The Eulogy / Section H8 Feb 21, 2019 Long Beach, California, United States Uploaded by Felix Joel Garcia
