Thermo-cut Wire Necklace
In 4x04[[4x04 - Benefactor|4x04]] Violet[[Violet|Violet]] uses her necklace to kill Demarco[[Demarco Montana]] Montana by decapitating him. Also in 4x05[[4x05 - I.E.D.|4x05]] she trys to kill Scott[[Scott McCall|Scott]] using her necklace.