It's not a headline you'd expect to read, but what really surprises you these days?
According to one member of ISIS, animal cruelty is a no-no, but killing innocent civilians is for a greater cause.
The Islamic terrorist group has been encouraging extremists to join their mission through their online propaganda videos for several years now.
Tareq Kamleh, an Australian pediatrician, went from saving the lives of sick kids to wanting to end the lives of anyone that stood against the terrorist group's mission.
He was considered the poster boy and a recurring figure in these propaganda videos. He was given a home in Syria, and appeared to be living happily.
Then they found his diary, which revealed something strange...