Incident location, Long Island
What Happened
A 78-year-old woman was struck by a white van while lawfully crossing in a marked crosswalk in Oceanside on Thursday afternoon, June 19, 2026, in what Nassau County prosecutors are calling a drunk-driving incident with potentially fatal consequences. According to ABC7 New York, the collision occurred at the intersection of Long Beach Road and Weidner Avenue just before 5 p.m.
Video obtained exclusively by ABC7’s Eyewitness News captured the sequence of events: a white van is seen stopped at a red light as the 78-year-old woman enters the crosswalk. The van then moves forward, striking her. The driver of the van was identified as Niall Duignan, 24, of Oceanside. At arraignment on Friday, June 20, prosecutors disclosed that Duignan’s blood alcohol content was measured at .21% — more than two and a half times New York’s legal limit of .08%, and significantly above the .18% threshold that triggers Aggravated DWI charges under state law.
The victim’s condition as described by prosecutors in open court was grave. ABC7 New York reported that she is hospitalized with a brain injury and a lacerated liver, has been intubated, and prosecutors said she is “likely not going to survive.” The woman’s name has not been publicly released.
Duignan’s defense attorney told reporters that his client is a certified Emergency Medical Technician and that Duignan stayed at the scene of the crash and administered CPR to the victim before emergency services arrived. Despite those actions, prosecutors have made clear they intend to pursue the case aggressively. Nassau County District Attorney Anne Donnelly issued a statement saying, “It is unspeakable that this defendant was allegedly driving while highly intoxicated, in broad daylight on a Thursday afternoon, when he struck an innocent 78-year-old woman in the crosswalk who now fights for her life.”
Duignan was charged with driving while intoxicated and vehicular assault. He pleaded not guilty to both charges at his Friday arraignment. He was released with an ankle monitoring device and is scheduled to return to court on July 2. Prosecutors indicated at arraignment that higher felony charges are possible depending on the victim’s condition, according to the reporting by ABC7 New York.
Location & Road Context
The crash took place at the intersection of Long Beach Road and Weidner Avenue in Oceanside, a densely populated hamlet in the Town of Hempstead in Nassau County. Long Beach Road is a major north-south commercial corridor running through Oceanside, connecting residential neighborhoods to shopping districts and serving heavy pedestrian and vehicle traffic throughout the day. The crash occurred in broad daylight on a Thursday afternoon — not during nighttime hours typically associated with drunk-driving incidents — underscoring the brazen nature of the alleged offense as noted by prosecutors.
Our local incident database currently contains 620 recorded accidents in Nassau County, reflecting the corridor’s ongoing safety challenges for pedestrians and drivers alike. This incident adds to a cluster of serious crashes recorded in the county on June 19, 2026, including a moderate-severity crash on I-495 the same day.
Investigation & Legal Proceedings
Duignan was arraigned on Friday, June 20, 2026, in Nassau County court, one day after the crash. At the arraignment, prosecutors presented the .21% BAC figure and detailed the severity of the victim’s injuries. He pleaded not guilty to both charges — driving while intoxicated and vehicular assault — and was released on the condition that he wear an ankle monitor. His next court date is July 2.
Nassau District Attorney Anne Donnelly stated publicly that her office would “aggressively prosecute” the case. Prosecutors also indicated that if the victim’s condition deteriorates further, the charges could be upgraded to a higher-level felony, potentially including vehicular manslaughter or criminally negligent homicide, depending on how the case develops.
What This DWI Charge Means
Under New York Vehicle and Traffic Law §1192, there are multiple tiers of impaired driving offenses. A DWAI (Driving While Ability Impaired) applies when a driver’s BAC is between .05% and .07%, and is a traffic infraction, not a criminal offense. A standard DWI applies at .08% BAC or higher and is a misdemeanor for a first offense, carrying fines of $500–$1,000, a minimum six-month license revocation, and up to one year in jail. When a driver’s BAC reaches .18% or above, the charge escalates to Aggravated DWI — a more serious misdemeanor on a first offense with fines of $1,000–$2,500, mandatory license revocation for at least one year, and the same potential jail exposure. In all DWI cases, New York also mandates the installation of an ignition interlock device upon any conviction. Duignan’s alleged BAC of .21% firmly places him in the Aggravated DWI category on the breathalyzer results alone.
Because this case involves serious physical injury to a pedestrian, the charges go well beyond a standard DWI. Vehicular assault in the second degree under New York Penal Law §120.03 is a Class E felony when a driver causes serious physical injury while intoxicated. If the victim does not survive, prosecutors have indicated they may pursue vehicular manslaughter or an even higher charge, which carries substantially longer potential prison sentences. Additionally, under New York’s implied consent law, any driver who refuses a chemical test after arrest automatically faces a one-year license revocation and a $500 civil penalty — separate from criminal penalties — though in this case a BAC was apparently obtained.
Broader Impact
Pedestrian safety at crosswalks along Long Beach Road has long been a concern in the Oceanside area, and this incident — in which a driver allegedly struck a crossing pedestrian at a marked intersection at a red light in the middle of the afternoon — illustrates the acute danger posed when impaired drivers operate vehicles during daylight hours in residential commercial corridors. Nassau DA Anne Donnelly’s public statement singling out the timing and location underscores that DWI is not simply a nighttime, highway concern on Long Island.
Case Status & Updates
It is important to note that a criminal charge is an accusation, not a conviction. Niall Duignan has pleaded not guilty and is presumed innocent unless and until proven guilty in a court of law. The case is proceeding through Nassau County criminal court, where it is expected to continue following Duignan’s next scheduled appearance on July 2.
Long Island Traffic monitors DWI and vehicular assault cases as they move through the Nassau and Suffolk County court systems. This report will be updated as additional information becomes available, including any charge upgrades, plea agreements, trial outcomes, or sentencing. Readers who have information relevant to this case are encouraged to contact Nassau County law enforcement directly.
For a full list of recent incidents in the area, see our Nassau County accidents page.