The body of Zainab was found in a garbage bin on January 9 , four days after she was abducted from her home Kasur district in Punjab province.
An autopsy revealed that she was raped and strangulated to death brutally .
It was the 12th case of rape and murder in this district in past year , Police said .
The suspect lives in same area where Zainab lived .The suspect has confessed , Police said .
The incident led to angry protest in all over Pakistan that resulted at least two deaths and several injuries .
In 2015 Kasur was in International headlines when hundreds of videos of child molestation surfaced .
And police arrested several members of that racket involved selling child pornography in Europe .
Most of the victims were under 14 , including a six year old boy . Police said .
