i would tell the Parent that they would have a 2 days with their child, and on the third day we fight. and right before the fight i would ask him...if he was sorry for what he did...and if he would reply yes..i would ask him what he would do to atone for his sins....if he did not know i would tell him...and i would let him go.....also i know what he did was vague but to me he killed my father...and left me for dead...and i don't think i would kill all his little minions..i would prolly let them go to....that's assuming i have the skills to take someone on and then beat them bad enough that they would just leave when i tell them they are done