Karkare a Villian for Indians

Look at the eye account. There was one guy wounded in the attack and he says that they had no idea who they killed. They hijacked the jeep the police officers were traveling after dumping their bodies. This was when reporters were attacked too with them coming in a police jeep. If they had known, and if they have specifically targeted the cops, then why would they say that is a bonus that they killed the ATS officers.