They are not ISIS they are just attention seeker they want to get the attention of international group called "ISIS" to have fund to their activities they are the Maute groups the one who plant a bomb on night market davao hoping that after the declaration president duterte will force all his trops to kills those animals who killed 9 christians already.
Well, why not kill them all then?
Both bible and quran prescript capital punishment for premediated murder (this case) and Duterte, unlike western puppets seems to be strong enough man to carry out justice in this regard.
Remember, from the point of natural law, it doesnt matter what murderer seeks or wants to prove. What matters is that he is held accountible for his crimes against humanity, nature and God.
Can you source more information for us, non-Phillipinos, please?
Old testament mostly. After the Gift, absolution comes from simple request; the wicked are actually allowed to continue in their wickedness to their ends. It is seemingly cruel, but it has a two fold purpose; free will is observed, which seems of critical importance, and the wicked are allowed to firmly root themselves in their ways, ensuring they have no place in the Kingdom. Also, the Lord has a thing about allowing the unjust to collect a great deal of substance, so that when they perish, it is distributed to the just. Thus, the wages of sin pay the debt of charity

It's a classic atheist talking point; not knocking atheism, but I had to point out the minutiae for clarity.
The first murderer, Cain, was allowed to continue to the end of his days. The originator of homicide, and he was indeed punished, but even at the very beginning of the Book, the most brutal part, he lives.
Something to ponder on.
Carry on
