The young victims, two girls, ages 15 and 16, and a 15-year-old boy, were in the muscle car traveling west on Hylan Avenue when they collided with an eastbound SUV trying to turn left onto Richard Avenue at about 8 p.m. :45 p.m., according to the NYPD. The 16-year-old girl and boy were pronounced dead at the scene. Police said the 15-year-old girl was taken to Staten Island University Hospital North, where she later died. The driver of the red Mustang, a 16-year-old boy, was hospitalized in critical condition. The young victims were two girls, aged 15 and 16, and a 15-year-old boy. Steve White The only occupant of the black SUV was the driver, who suffered non-life-threatening injuries, sources and police said. It was not immediately clear what caused the fatal wreck, which was being investigated by the NYPD’s Collision Investigation Team. The SUV was going east trying to make a left turn onto Richard Avenue before it crashed, according to the NYPD. Photos from the scene show the remains of the smashed Mustang, which ended up in two pieces. Additional reporting by Kenneth Garger