Who killed Husain RA?

[Iconoclast]

@Mostar95

They were killed by the Yazid Army led by Umer bin Saad bin Abi Waqas. Yazid never punished Ibne Ziad and Umer Bin Saad (if Yazid was not involved). People of Kufa betrayed and stood aside.

Saad was sympathetic to Imam Hussain and tried his delaying tactics, bcoz of which Yazeed send Ibn Ziyad to take the command of the army and he is the one who perpetrated the whole event.