The Thai military has been drawing down its force-level in the troubled far south.
Extremist group is featuring children in constant barrage of propaganda.
A tiny percentage of such fatalities occur in Western Europe and the U.S., according to the Global Terrorism Database.
More than 200 have left the Indian Ocean archipelago to fight alongside radical outfits in the Middle East.
Government critics say they live under constant fear of arrest or even being killed.
The boy was studying medicine in Europe when he fell into the "terrorists’ trap."