Her hands and feet were tied before she was placed inside the drum, say police
He currently serves as a peon at the Government Boys High School in Nawa Abad, Pishin.
Her body was formally claimed by her family on Thursday, following widespread media coverage and public interest in the case.
Haider said he was not kidnapped or forced to leave, but had come to Lahore of his own free will.
At the scene, police recovered animal remains, bloodstains, and cigarette butts.
The DIG stated that the body would be handed over to Naveed following the completion of legal formalities.
The victim had returned to Karachi on a one-month leave for the funeral.
The devices were unlocked using passwords found in a personal diary of the deceased
The 21-year-old was taken into custody around 5am after arriving from Montenegro
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