Board Thread:General Discussion/@comment-24.150.191.44-20130401024547/@comment-8864605-20130615142313

Shen is her mother. But there is some merit to your possibility, maybe Shredder said Shen was her mother by Shredder and they were married, but that Hamato Yoshi killed her and scarred Shredder's face. I suppose the red herring possibility is there, but I'm really hoping this all plays out with Splinter being Karai's father.