Sorry, I don't get the connection.
Dr. Carson is a good man, who joined the GOP.
From Wikipedia:
He is credited with being the first surgeon to successfully separate conjoined twins joined at the head. In 2008 he was awarded the Presidential Medal of Freedom by President George W. Bush. After delivering a widely publicized speech at the 2013 National Prayer Breakfast, he became a popular conservative figure in political media for his views on social and political issues, spurring talk of his becoming a Republican candidate for the 2016 presidential election.
Cain murdered his brother Abel.
:)