MQM killed 50 in self defence stated by the blind supporters of MQM, so you could easily think it would be no less than double because they exaggerate at least this much.
Police didn't file any case against them because MQM and police in Karachi are the same.
Who provided MQM workers with guns for 12th May or they had already got them?
People at arms means poor security situation in Karachi in the presence of MQM Governor and Nazim not for a year or so but for the last so many years.
No control over the people of Karachi apart from threatening the common people.
People can run freely with arms if they have the MQM License from London.
Even after getting the video clips and images of the people involved, nothing could be done to identify the crimminals and the miscreants. because they simply don't want to do it, since they will be exposed more than others.