1.
Yitzchak Silverman asked:
Antoninus is presented as the epitome of a goy who deserves olam haba and yet, this is the same one who killed 2 ovadim every day so his secret tunnel wouldn't be revealed. How can we reconcile?!
Yitzchak Silverman, Boro Park US
2.
The Kollel replies:
This issue is addressed by Tosfos in Avodah Zarah 10b DH Chad Katil. Briefly, Tosfos answers that since it was an issue of Piku'ach Nefesh, he was utilizing the principle of "If someone comes to kill you, rise up and kill him first."
Kollel Iyun Hadaf