So do I. Mary wasn't Christ. Thus, Mary wasn't perfect. Thus, Mary sinned just like all other human beings (except Jesus Christ) have...
But Mary was selected by God to be the mother of Jesus Christ.
Mary was immaculately conceived. The immaculate conception has nothing to do with Jesus and everything to do with the purity of Mary.
Her parents, St. Anne and St. Joachim were favored by God as they were to be the parents of Mary.
As far as Tom Horn is concerned I thought he was an indian fighter who was hanged for murder in 1903.