On January 26th, 2011, 27-year-old teacher Ellen Rae Greenberg was found dead in her Philadelphia apartment with 20 stab wounds to her chest, scalp and the back of her neck. When police arrived on the scene, they quickly concluded that Ellen died by suicide. Her fiancé, Sam Goldberg, told them that Ellen had been fine when he went to the gym at around 4.45pm – but when he returned at 5.30 he couldn’t open the door, and she wasn’t answering his calls or texts. He finally broke the door down at 6.30, and found Ellen’s body right there. The latched front door, and Ellen’s recent struggle with anxiety, were enough…