Incident location, Long Island
What Happened
A 15-year-old boy was struck and killed while on foot on the Southern State Parkway in Valley Stream on Thursday afternoon, September 4, 2025, in a tragedy that has left a community shaken and raising urgent questions about how the teenager came to be walking along one of Long Island’s busiest and most dangerous high-speed roadways. According to News 12 Long Island, New York State Police confirmed the incident occurred at approximately 1:15 p.m. near Exit 13 in Valley Stream.
The victim has been identified as Christopher Williams, a 15-year-old resident of Saint Albans, Queens. Williams was reportedly on foot on the parkway when he was struck by a vehicle traveling on the highway. He was rushed to a nearby hospital, where he was subsequently pronounced dead. New York State Police are leading the investigation into the fatal collision. No information about the driver of the striking vehicle — including any charges filed — had been released at the time of the initial report.
What makes this tragedy particularly alarming is the circumstances under which Williams came to be on the parkway at all. According to News 12 Long Island, police say Williams had gone missing from Martin de Porres School for Exceptional Children, located in Elmont — a school specifically designed for special needs children. The school sits less than a mile from the site of the fatal crash near Exit 13. The exact circumstances surrounding how Williams left the school, how long he had been missing before the collision, and how he came to be walking on a parkway where pedestrian access is prohibited all remain under active investigation.
News 12 reported that the outlet attempted to contact Martin de Porres School for Exceptional Children multiple times following the incident but had not received a response as of the time of publication. The school’s lack of public comment has only deepened the questions surrounding how a student in their care was able to leave the campus undetected and travel nearly a mile to a high-speed, pedestrian-prohibited parkway in the middle of the school day.
A neighbor living just steps from where the collision took place offered a sobering account of the moments surrounding the crash. Termaine Garden told News 12 Long Island that he was home at the time and heard the unmistakable sound of tires screeching before a heavy law enforcement presence descended on the area. “I saw the police activity. I saw Nassau County, I saw state troopers,” Garden said. His account confirms that both Nassau County police and New York State Police responded to the scene. Garden also spoke to the troubling regularity of accidents along that stretch of road: “It’s notorious. There’s always accidents, car accidents any time of night. Hear a lot of accidents, hear a lot of tire screeching.”
Following the collision, multiple lanes of the Southern State Parkway were shut down for several hours as police investigated. Those lanes have since reopened. The investigation into the precise cause of the crash and the sequence of events that led Williams onto the roadway remains ongoing.
Location & Road Context
The Southern State Parkway near Valley Stream is a high-speed, limited-access highway that is explicitly not designed or permitted for pedestrian use. The stretch around Exit 13 sits in a densely developed portion of western Nassau County, where the parkway threads through residential neighborhoods — making any pedestrian incursion onto the roadway exceptionally dangerous. The Long Island Traffic database has recorded 446 incidents on the Southern State Parkway alone, underscoring the roadway’s historically dangerous character. Recent crashes on this corridor include incidents recorded as recently as May 2026, reflecting a consistent and troubling pattern of collisions. Resident Termaine Garden’s description of the area as “notorious” for accidents echoes what the traffic data makes clear: this is one of Long Island’s most hazardous stretches of pavement, particularly for anyone outside of a vehicle.
Martin de Porres School for Exceptional Children is located in Elmont, approximately a mile west of the crash site. The proximity of a school serving children with special needs to a parkway of this nature — and with no apparent safeguard that prevented a student from reaching it — will likely be a central focus of the investigation going forward.
Investigation & Legal Proceedings
As of the time of this report, New York State Police have not announced any charges related to the collision. The investigation remains active and focused on two parallel questions: the cause of the crash itself, and the circumstances under which Christopher Williams departed Martin de Porres School for Exceptional Children and came to be on the Southern State Parkway. Authorities have not released any information about the driver of the vehicle that struck Williams, including whether that driver remained at the scene, cooperated with investigators, or faces any potential legal liability.
The school’s failure to respond to media inquiries may signal that institutional scrutiny is forthcoming. Questions about the adequacy of supervision protocols at the school — and whether appropriate safeguards were in place to prevent a vulnerable student from wandering from the premises — are expected to be examined as part of or alongside the police investigation.
Broader Impact
The death of Christopher Williams throws a stark spotlight on the specific and serious dangers faced by children with special needs who wander — a phenomenon documented extensively in safety literature as one of the leading causes of accidental death among individuals with autism and other developmental conditions. In New York State, schools serving students with disabilities are subject to individualized education program (IEP) requirements that include supervision protocols; whether Martin de Porres School for Exceptional Children met those standards on September 4, 2025, is a question that investigators, school administrators, and potentially state education officials will be compelled to answer. For families across Long Island with children enrolled in similar programs, this tragedy is an urgent reminder of the life-or-death stakes involved in the duty of care those institutions carry every single school day.