An Angel and Alma the Younger

We were all taught in Seminary and Sunday School about the teenaged antics of the sons of Mosiah and Alma, Jr. We learned about their efforts to sway people from the Church. We also learned about the visit they received from an angel that called them to repentance with a thunderous voice that shook the earth.

I wonder though why the angel specifically addressed his words to Alma. Why was Alma the one who went into the trance/coma? Do we have any indication that Alma was more ?¢‚Ǩ?ìevil?¢‚Ǩ¬ù than his four partners were? It certainly is not because Alma, Jr, had any more of an important work to do than the sons of Mosiah.