It was her lawyers who concealed the evidence of her enthusiastic, voluntary participation in all the crimes (including the torture death of her own little sister), until they had an iron-clad plea agreement.
She should be hanged, and the lawyers alongside her, but never happen in Canada. Canada's sweet on its criminals (see Omar al-Khadr, another murderer walking free in Canuckistan).
d.o.l.
Criminal Number 18F
Uh, Karla did not torture her sister. She drugged her, which caused her death. But she drugged her so Paul could have his way with her, which makes it even more sadistic.