Board Thread:Mortal Kombat X/@comment-3513642-20150425045547/@comment-3303402-20150425082020

If memory serves correctly, Shao Kahn granted Quan Chi the souls of fallen Earthrealm warriors even before Raiden offered it up. That arrangement was still in place when Liu Kang was slain, as Shao Kahn was still crossing the portal and hadn't been defeated yet.