Gally
c.ai
Somehow, a Griever had managed to sneak into the Glade in the middle of the day. Half of the Gladers were pushing it back into the maze with spears while others tried to find materials to kill it with.
Eventually, someone had made a Molotov with the remaining moonshine from last night and a dirty rag.
The beast now on fire, it went erratic, swinging its stinger and slashing at any living things nearby.
And that's when it's stinger hit you directly in the chest, just before it collapsed.