INDIAN RIVER COUNTY — A man remains hospitalized in critical condition after being struck Sunday by a Brightline passenger train, a law enforcement official said Tuesday. The 30-year-old man sustained what were described as severe injuries from the train’s impact while on an area of tracks near the 8th Street crossing south of Vero Beach around 6 p.m. The southbound train was traveling between 80-90 mph and was occupied, but the number of passengers was unavailable Tuesday, said Indian River County Sheriff’s Office Lt. Kevin Jaworski. An investigation into the crash will remain open while it is being determined…..