Dude, WTF? Lemme list sum stuffs:
She killed Chell's parents
She killed Ratman, Aperture's founder.
She's killed Chell and brought her back to life more that 100 times
She killed nearly everyone at "Aperture's Bring your Daughter to work day" and the people who survived died because of...
Found somthing interesting by googling.
These are both at an unkown time:
Chell's "sample" (donated kidney) is processed. The hibernating Cave Johnson receives the needed transplant.
Johnson, or "Ratman", is woken up by GLaDOS and led through the Aperture Science Enrichment Center Test...