Hopkins Doc Ditches Grad Speech in Gay Marriage Storm Bestiality comparison enraged students By Matt Cantor, Newser User Posted Apr 11, 2013 2:13 AM CDT 74 comments Comments President Bush presents The Lincoln Medal to Dr. Benjamin Carson, right, a renowned pediatric neurosurgeon at Johns Hopkins Children's Center in Baltimore. (AP Photo/J. Scott Applewhite) (Newser) – Neurosurgeon and rising conservative star Ben Carson is following through with his offer to step down as commencement speaker at Johns Hopkins medical school, where he works. Students launched a petition after Carson's comments regarding gay marriage, bestiality, and pedophilia. "Given all the national media surrounding my statements as to my belief in traditional marriage, I believe it would be in the best interest of the students for me to voluntarily withdraw," he wrote in a letter to a dean who'd also attacked his comments. Carson added that he didn't want to "distract from the celebratory nature of the day," the Baltimore Sun reports.