skull spider tattoos or skull tattoos signifies murder, if the murder was significant enough to merit the tattoo. Military insignia and uniform epaulets are worn on the shoulders. This symbolizes criminal accomplishments. When a Skull symbol is portrayed with it, it usually designates a man as a murderer. Epaulets are decorated with certain crests and symbols in the sections where one can see the Skull there prior to conviction, especially when it was of any significance.
