Whats Going On In Karachi

Please do not take MQM to represent Mohajirs as majority of Mohajirs is neutral, they don't support any political gangsters while a good number supports MQM, no doubt. But significant number supports other political and religious parties.
And if MQM is not involved in this gang war then who's killing MQM activists, jinns?
And why others are blaming MQM to kill their people?