Do not repeatedly make low effort posts or otherwise spam the subreddit. Doing so violates our no glorification rule. Do not refer to the number of victims of a mass murder as a 'high score'.You must be mature and responsible when using this sub.Do not post content related to conspiracies around occurrences of mass killers. Do not post articles related to political causes such as for/against gun-control legislation, political affiliation, etc. Gifs without informational content will be rejected. No inappropriate humor, eg politically motivated or otherwise.Do not share links to the Christchurch or the Halle livestreams or ask for them in any way.This includes having profile pictures with references to mass murderers or offensive usernames. The purpose of this sub is to discuss the crimes, psychology, and motivations of people who have committed mass killings, not to glorify them. Do not glorify mass killers/mass murderers.Individuals who attempt a mass murder are also allowed. A mass killer is defined as a single individual who commits a crime such that 3 or more individuals are killed in a short period of time, usually in the same physical space. Posts must reference mass killers/mass murderers - or 'spree killers'.You must be 18+ to participate in r/masskillers.