I don't agree with this Islamic angle.Iin my opinion this could be the work of Kashmiri terrorists 'fighting' for their land.South India is relatively peaceful and prosperous than North or East of country.Had they killed few people in j&K,there would not had been much news as its a daily routine.But killing people inside institution definitely makes more news. The onus lies on police,security agencies. More importantly,agencies and police should catch REAL CRIMINALS and not some 'suspects' thereby torturing then and making them free after media picks up different issue.