OK, so here is the set up. War pig with 1 WD charges an ice gamin. He flips a red joker for damage and the ice gamin dies.
Now the War pig has a trigger called "Eat your fill" which states: "After killing or sacrificing an enemy model, this model may choose to heal all damage it has suffered and end its Activation", however the Ice gamin explodes upon being killed doing enough damage to kill the warpig.
Which one goes first? Go!