At a minimum, I would be asking the following line of questions. Who constitutes Fazal's circle of friends - is he part of the typical Pakistani student "in crowd?" Did he bring the perp to Pakistani parties? Was the perp an "honorary Pakistani" hanging out with that particular clique? If yes to all these, are there individuals within said clique who might be embedded Al Qaida or ISI operatives? Etc.
I wonder if anyone at the FBI ever reads Free Republic. Seriously, it might help them in their investigations.
"...said clique who might be embedded Al Qaida or ISI operatives? Etc."
Sounds like the authorities opted for the "Etc." option.