Judas Iscariot’s betrayal of his Savior and ours certainly is one of the most evil acts.
Going by obvious evil done to the most people within the person’s lifetime, Josef Stalin. He killed 40-60 million people. Artificial famine is a particularly egregious way to mass murder people in a torturous manner.
Margaret Sanger would get my vote for the most evil woman whose influence is still enabling genocidists, rapists and self-centered women to kill innocent babies.
Leni