The van carrying two patients from Princeton-based Community Options collided with a truck carrying a 50,000 pound concrete wall for a warehouse in the intersection at Ridge Road in South Brunswick on April 12.
Iftekhar Hossain was arrested on Dec. 8, according to West Windsor police, stemming from the November incident that killed a 12-year-old pedestrian and her dog.
Investigators are looking for the public's help to identify a male in connection with the case as Stephanie Carmody's mother begins the process of laying her daughter to rest.