Unfortunately, being a Bangalorean by birth, I'll have to accept the terrorist was from Bangalore (Bengaluru). Very much evident. It'll be foolish to blame the west. There is no point in denying the fact. What matters is how deep have these terrorists grown their roots on this soil.
Further actions: Get all the details possible from these fellows and terminate them at point blank range. This at least avoids these fellows poisoning the jail inmates.