Perhaps you are right, I don't know. Some have said that because they didn't claim responsibility, it isn't a terrorist group. However, although Hamas, Hezbollah and Islamic Jihad (et al) are quick to claim responsibility, al Queda isn't.
Likewise, I could see where terrorists might demand ransom to acquire more targets or even to actually get the money (we've hit them in their pocketbook this past year.) But considering the discipline used to set up each kill and escape, I can't quite see them actually planning on making a "pickup." But that's just my two cents...