Boomerang

A boomerang is a throwing weapon used by killer '''Digger Harkness. '''It is steel-made curved blade approximately 40 centimeters long, sharpened from both sides and perforated by four prolongated holes. This weapon, as thrown, spins about an axis that is perpendicular to its flight direction and is designed to return to the thrower. The steel boomerang is thrown by the user above the victims head and when it returns, it stubs the victim in the back around 5-7 centimeters deep.

Known users

 * Digger Harkness, a.k.a. Captain Boomerang

Season 3

 * "Draw Back Your Bow"