Death report of Mrs Bhutto

I am thinking that assassination of Mrs Bhutto was a planned.Who is guilty,why it was happened ? In Pakistan there was a long history of assassinations.Will they come back? What will be outcome of reports? Who is guilty,who will punish them?It is nothing but wastage of time,money,energy.Who will punish,will be assassinate.History repeats itself.Who is safe in any where.? Highly protected highly endanger.It will be a additional chapter of life history.