I think its a powerful gang protected by police and patronized by PMLN. There is no other way how a common serial killer and rapist be scot free after committing 12crapes in a short time.
This is the height in injustice. And this happens when Allah is not happy with a nation. This is azaab that we such heartless, callous and selfish rulers.
The investigation process is very meticulous. It can't be rushed into without proper investigation that yields concrete evidence. One innocent man already paid for life being suspect of this case. 12 are already arrested as suspects.
Give the investigation process to complete uninterruptedly which does take time.