MP

Mysterious / Mysterious Person is a character on School Memories (also now known as School Memories Again) and first made an appearance at the end of the season four mid season finale. (S)he has shown skills of stalking, manipulating, and is able to delete texts off phones, remain anonymous and can pull a fight. Has a gun for protection.

Is seen damaging Jay Hut on a motorbike before leading Jefferson Larousse to he/she's hideout. Called and texted Anna Nguyen anonymously and deleted text messages off her phone. Confronted John Hazel at the hospital and attacked Craig O'Meara knocking him unconscious.

At the mid season finale, he shoots Joanna McValerie and runs off. He is expected to return in the Summer Arc.

Link Between Jefferson, Craig and Anna
MP wants one thing from Jefferson, Craig and Anna. She/he says that the three know on what MP wants. It's possible that something happened before the story, or something along the way that connects.

Andy
Craig is knocked unconscious by MP while talking with Andy, so there might be a connection between the two, or Andy might be working with MP.

Joanna's Secret
MP knows about Joanna McValerie and Jefferson Larousse's affair and who the babies' real father is. Joanna has not told anyone other then Jefferson and Giaminh Donovan, but Giaminh believes the baby is Craig's.

Suspects
Jefferson, Craig, Anna, Joanna, Andy and John are all clear of being the identity of MP as they were present when MP were around. Giaminh is on top of the suspect list, but unlikely as she thinks the baby is Craig's.