Amy Bishop, the University of Alabama Huntsville neuroscientist charged with the killing of three colleagues in a shooting spree, may not remember her own horrific crime. “She just doesn’t remember shooting these folks,” said Bishop’s lawyer Roy W. Miller. “She’s very sorry for what she’s done.” Miller is expected to file an insanity plea for his client, and has to engage at least one psychiatrist to work with Bishop. “This is not a whodunit,” Miller said. “This lady has committed this offense or offenses in front of the world. It gets to be a question in my mind of her mental capacity at the time, or her mental state at the time that these acts were committed.” Authorities are also looking into prior incidents of memory loss in Bishop and Massachusetts Governor Deval Patrick ordered a review of the investigation surrounding the shooting of Bishop’s brother in 1986, which was ruled an accidental death.