A Canadian teen accused of murdering her family told a hushed courtroom she stabbed her eight-year-old brother, but her much older boyfriend slit the child's throat, said reports Wednesday. The girl, who cannot be identified under Canadian law, told a jury in little more than a whisper that her boyfriend, Jeremy Steinke, had killed her parents and then ordered her to stab the little boy, said the daily Globe and Mail. "He yells at me, 'Stab him, just stab him! Slit his throat!"' she testified. "I said, 'I can't, I can't,' and he said, 'You have to. I did...