1- Say This has nothing to do with Islam and does not represent Islam
2-claim to be The religion of peace
3-It's payback for the west being in the. Middle East
4-The perpetrator was mentally ill
5-It was a 'Lone wold attack'
6-it's just part of living in a big city
7-claim Christians do these things too
8-Those who object are racist bigots
9-change Facebook profile to the flag of inflicted country
10-claim muslims are the real victims
11-wait for the next Islamic Terrorist attack to happen
12-Go back to #1. Repeat as needed.