and intelligence agencies give them tip off?
Bhai bhaibarood ,
I do not think that any intelligence agencies are involved in this incident and I am sure you know as well :)
Such think maybe alot of REASONS like .
1. Paying killing --- Someone paid police to kill these person
2. Killing because of some personal enemity
3. Killing because they wanted some money on spot ( from those people ) and later some more TAMGHA and post because they killed some TERRORISTS .