Ludington man pleads guilty to heroin delivery. #MasonCountyCrime By Allison Scarbrough, Editor. LUDINGTON — A 39-year-old Ludington man pleaded guilty to delivery of heroin less than 50 grams, possession of fentanyl less than 25 grams and second-offense habitual offender in 51st Circuit Court Tuesday, Dec. 17. Thomas James Robinson, Jr., of 307 S. Rowe St., originally faced charges in two…