By Denny Dyroff, Entertainment Editor, The Times John Francis O’Mara John Francis O’Mara is the second most famous musician to graduate from Owen J. Roberts High School. If you’re wondering who is the most famous, think “Sara Smile,” “She’s Gone” and “Maneater” – think Daryl Hall of Hall & Oates. Like Hall (actually Hohl), O’Mara has toured a lot over the last few decades...