Why did Michael fake his death in GTA?

Could you elaborate on the motivations behind Michael's decision to fake his death in GTA? Was it a strategic move to evade authorities or a personal choice to escape his past? Did he have any allies assisting him in this elaborate plan, and how did he manage to keep his true whereabouts a secret for so long? It's intriguing to ponder the reasons behind such a drastic move, and I'm curious to hear your thoughts on the matter.