Authorities have identified the man struck and killed by a New Jersey Transit train in Spring Lake last week as a 24-year-old from Ireland. Anthony Mulhearn, of Mulinavat, Ireland, was in the United States on a visa staying in Spring Lake when he was hit by a North Jersey Coast Line train at about 11:50 p.m. Thursday just south of the train station, officials said. North Jersey Coast Line train 4398 left Bay Head at 11:34 p.m., headed to Long Branch. It was the final shuttle train of the night and had six people aboard, officials said. A school Mulhearn attended in Ireland offered its condolen…