Penn State senior heavyweight Greg Kerkvliet needed just two words to announce that he was returning to the Nittany Lions for a shot at his second national title in as many years. A graphic posted to his social media account simply said: “Coming Back.” With that, the college wrestling world was set into its latest Penn State-induced frenzy of May. The first came when fellow defending NCAA champ Carter Starocci said he would return for a final season in a blue and white singlet back on May 1. The second came Monday when Lions legend David Taylor was officially announced as the new head coach at…