Sutcliffe's Attacks on Tracy Brien and Marilyn Moore

Tracy Brien was attacked by a man with a hammer on her walk home. She needed neurosurgery and bone had to be removed from her brain. Her attack was never linked to the other river attacks as it was considered at the time as being the work of a copycat. Sutcliffe has since actually admitted to the attacks on Ian Rooney and Tracy Brien, but nothing has been done. Some believe the number could be closer to 23 attacks and murders that Sutcliffe was responsible for but never charged with. The police are using new technology to test their nase samples from old police exhibits.