Sektor was murdered by Sub-Zero .
At this point it is revealed Sub-Zero revealed the truth to Hasashi about what happened to his clan years prior ; that Sektor 's father cut a deal with Shinnok , and Quan Chi would exterminate the Shirai Ryu for the Lin Kuei , including Hasashi and his family , in exchange for no interruption from the Lin Kuei during Shinnok 's invasion of Earth .
Mortal Kombat X