Evidently the device was not very sophisticated - given that large of a charge the kill ratio was quite small. Lots of wounded no doubt from fragmentation - if the desire was to kill many, they should have used a small primary charge to send the main device up to the ceiling.... 1/4 pound or less....daisychained with det cord and a switch. You’d thInk that after this many years of making IEDs?
Regardless of their religion, prayers up for the wounded, hopefully they recover. Killing and wounding kids deserves a special place in Hell.