In the third game there is a minigame that shows the purple guy running into the suit and dying because he is afraid of the dead child spirits which where probably released when he destroyed the animatronics in the past minigames. Why did he do this? He was most likely an employee there since he always seems to be at a location ruining it for the company so i would think he would have knowledge on the suits springlocks or whatever. I think since he now knows about the spirits posessing the suits i think he purposley went into the suit and killed himslef so he could posses spring trap and not need to worry about being haunted by the spirits and he would forever safe. Thats just my theory.