Authorities have identified the 48-year-old motorcyclist killed in a crash Thursday in East Brunswick. Thomas Zink Jr., of Milltown, was riding along the 100 block of Fresh Ponds Road around 4:30 p.m. when he crashed, East Brunswick police said. Zink was pronounced dead at the scene. No other vehicles were involved. Police declined to release additional information, saying the crash remains under investigation. Anyone with information is asked to call East Brunswick police at 732-390-6969. Our journalism needs your support. Please subscribe today to NJ.com. Jeff Goldman may be reached at jeff_…