Killing as Liberation

[James Bowery]

Being that Tibetan philosphy recommends that violence be avoided, even
to the point of allowing one's self to be killed, I'd like to
understand the history of the Tibetan celibration of the liberation of
a tyrant whose name escapes me at the moment. As I understand the
significance of the celebration: A tyrant was stuck in a mode of
action that was spiritually disasterous for himself. Due to the
difficult circumstances created by his incarnation, the compassionate
karma yoga(?) involved killing him to free his spirit from an
incarnation that was too disasterous to permit ordinary karma yogic
practice. This sort of compassion is obviously difficult to exhibit
since killing is so associated with anger and, presumably, the hell
realm. Moreover, I would expect that mirror-like clarity has to be
the mode of those who act with such decisive compassion.
<p>
What are the written histories available on this tyrant and the
compassionate ending of his incarnation?