I agree with GP, they will often regurge them, but it doesnt mean the "eaters" will die. If a hatchling has eaten another hatchling, its very very clear.
are you sure they havent escaped or arent hiding under some substrate or something?? 6 hatchlings couldnt have been eaten by the four left could they? even if they did regurge them.. id check to see if they havent escaped or something
2.0 Normal Royal Pythons - Q and Little One 1.0 Chihauhaun Mountain Kingsnake - Simba
i think it is possible they escaped but it would mean them getting up a 2 and a half foot tall tank then getting past the lid ( i do not have any thing in the tank for them to climb up) also what is the chances of them serviving only three had feed on one pinki each the other three had not feed has yet?