Find out who that is, we will hang both: the terrorist and those who shelter them. No one tells you that he is a terrorist. Don't just start giving lectures. In our busy lives we don't have time to even think about our family members, forget those renting our houses.
We don't even know who these people are (may also be done for political mileage). Let the IB work on it and bring the facts out. Meantime, if you don't have any work, go home and sleep.