Is it permissible to kill a woman who practices sorcery and causes harm, and is it permissible to report her?

Caution does not avert destiny, and supplication benefits against what has descended and what has not descended. Be diligent in performing four rak'ahs of prayer at the beginning of the day, and repeat "Hasbiyallahu la ilaha illa Huwa, 'alayhi tawakkaltu, wa Huwa Rabbul 'Arshil 'Azeem" (Allah is sufficient for me; there is no god but Him. In Him I have placed my trust, and He is the Lord of the Mighty Throne) seven times in the morning and evening.