Isn't it "First day Freeday and Any LRs that involve the following round being a Freeday for All" counting as Last Guard DOES NOT kill all?
"Last Guard kills all": If you are the last guard, not Warden, then you can kill all prisoners. Be sure to check with !w that it’s locked. You can’t do !uw in order to claim “Last Guard kills all.”
That's all that is listed within the rules in regards to last guard.