Mayra eventually revealed the truth -- that her sister was the real murderer. The sister is now serving time for the crime. In the mean time, Mayra was completely exonerated, and she went into treatment for her morbid obesity. She now has a Facebook page which she updates with pictures of herself as she makes progress in her weight loss. Mayra recently had her stomach stapled, and is slowly but surely taking off the weight.
Mayra's weight loss is really progressing. She seems to be happy with her treatment, and writes that she recently waled 100 feet down the corridor. It had been years since she was last able to walk.