‘Beheading’ (hereg) is with a sword: Yod י is the head of the sword, Vav ו is the body of the sword, Hei-Hei ה־ה are its two edges.
‘Strangling’∞ḥeneq: Vav ו [Var. Gimmel ג ] is made into a chord, like this cantillation note zarqa, and upon it is Yod י, of a ring, on a chord, to be wound around the neck.
And the mystery of the matter: (Num. 27:3) ∞Our-father died in the desert, – the cantillation notes maqaph ־ and holekh ֣, are Hei-Hei ה־ה, – one surrounds (maqaph) him, and one goes (holekh), until they strangle him. And because of this, the blessed Holy One stated: (Deut. 32:39) See now, that I, I am He, I cause death and I cause life, I wound and I heal, and there is none who can save from My hand.