i do blame her whole family but i blame authorities much more. Also girls family had said,that the street she walks down to reach her khalas place is almost always crowded and people are known to us , so it is hard to even believe girl got abducted from such area, from their own street,Does it matter? 10-11 kids are dead, 11-12 raped.
A serial rapist/killer is on the loose.
Anyways i would not blame her parents entirely for it. Even if any parents take excessive care there could be moments when they may not be very vigilant and those looking for a chance could make use of that opportunity.