Yaphank Woman Pleads Guilty to Manslaughter for Causing Crash That Left One Person Dead and Another Injured

Yaphank Woman Pleads Guilty to Manslaughter for Causing Crash That Left One Person Dead and Another Injured. Suffolk County, Long Island.

Updated Oct 1, 2025
CRITICAL INCIDENT
County
suffolk County
Reported
Source
News Sources

Map showing incident location at 40.7800, -73.3000 Incident location, Long Island

What Happened

Melissa Koprowski, 32, of Yaphank, pleaded guilty Tuesday to manslaughter and vehicular manslaughter charges for causing a fatal crash that killed a 75-year-old woman and injured another driver in Middle Island last November, according to the Suffolk County District Attorney’s Office.

The deadly collision occurred on November 22, 2024, at approximately 8:39 p.m. at the intersection of Middle Country Road and Wading River Hollow Road in Middle Island, prosecutors said. Koprowski was driving a 2014 Dodge Durango eastbound on Middle Country Road when she entered the intersection and attempted to make a left-hand turn in front of oncoming traffic without having the right of way, according to court documents and the defendant’s admissions during her guilty plea.

At the same time, a blue 2022 Nissan Rogue was traveling westbound on Middle Country Road proceeding through the intersection with a green light, prosecutors said. The Nissan was occupied by a driver, her two-year-old child, and her 75-year-old mother, Esther Guy, both seated in the backseat. Koprowski’s SUV crashed head-on into the Nissan Rogue within the westbound lane of the intersection, sending the Rogue off the road and into the wooded shoulder, according to the District Attorney’s Office.

Suffolk County police and emergency responders immediately rendered aid to those involved in the collision, prosecutors said. All three occupants of the Nissan Rogue were transported via ambulance to Long Island Community Hospital, where the driver was treated for her injuries. Esther Guy was pronounced dead shortly after her arrival at the hospital, while the two-year-old child was uninjured, according to the DA’s office.

Koprowski was also transported to Long Island Community Hospital for non-life-threatening injuries, prosecutors said. While at the hospital, officers observed that she displayed signs of intoxication and placed her under arrest. Subsequent toxicology testing revealed a blood alcohol concentration of .12% and a high level of THC, the active ingredient of marijuana, according to the District Attorney’s Office.

“No family deserves to go through the pain and anguish of violently losing a family member, let alone in front of their eyes,” said District Attorney Raymond A. Tierney. “We hope that today’s conviction brings some measure of justice to the family of Esther Guy.”

Location & Road Context

The crash occurred at the intersection of Middle Country Road and Wading River Hollow Road in Middle Island, a busy corridor in central Suffolk County. Middle Country Road serves as a major east-west thoroughfare connecting multiple Long Island communities and carrying significant daily traffic volumes through residential and commercial areas.

On October 1, 2025, Koprowski pleaded guilty before Acting Supreme Court Justice Richard I. Horowitz to multiple charges contained in the indictment, according to prosecutors. The charges include Manslaughter in the Second Degree (Class C felony), Vehicular Manslaughter in the Second Degree (Class D felony), Assault in the Second Degree (Class D violent felony), Assault in the Third Degree (Class A misdemeanor), two counts of Driving While Intoxicated (unclassified misdemeanors), Driving While Ability Impaired by Drugs (Class A misdemeanor), Driving While Ability Impaired by the Combination of Alcohol and a Drug (unclassified misdemeanor), and Reckless Driving (unclassified misdemeanor).

Koprowski faces 4 to 12 years in prison and is scheduled to return to court on November 17, 2025, prosecutors said. She is being represented by attorney John Halverson. The case is being prosecuted by Assistant District Attorney MacDonald Drane of the Vehicular Crime Bureau, and the investigation was conducted by Detective Brian Whitehead of the Suffolk County Police Department’s Major Case Unit.

Topics

Suffolk CountySuffolk County accidentserious accidentLong Island accident todayLong Island traffic todayLong IslandNY

Frequently Asked Questions

What should I do if I'm in a car accident in Suffolk County?

Call 911 immediately if anyone is injured or if the vehicles can't be moved safely off the roadway. Stay at the scene — leaving the scene of an accident with injuries is a crime under New York Vehicle and Traffic Law §600. Exchange license, registration, and insurance information with every other driver involved. Take photographs of every vehicle, the position of the vehicles before they're moved, all license plates, the road surface, traffic signs, and any visible injuries. Get the names and phone numbers of every witness — police often won't capture bystander witnesses on their own. Seek medical attention within 24 hours even if you feel fine; soft-tissue injuries and concussions can take a day or two to present, and a delayed medical visit weakens an injury claim. SCPD covers the five western towns of Suffolk County. The five East End towns (Southampton, East Hampton, Riverhead, Southold, Shelter Island) have their own town/village police forces. New York State Police Troop L responds to accidents on state highways including I-495 (LIE), Sunrise Highway (NY-27), Sagtikos Parkway, and Heckscher State Parkway.

How long do I have to file a no-fault claim in New York?

Thirty days. New York Insurance Law §5102 requires you to file a Personal Injury Protection (PIP/no-fault) application with the insurer of the vehicle you were in (or, if you were a pedestrian or cyclist, with the insurer of the striking vehicle) within 30 days of the accident. Missing the 30-day deadline can void your no-fault benefits — that's up to $50,000 in medical bills and 80% of lost wages (capped at $2,000/month) per injured person. The form is the NF-2 application; your insurance carrier provides it on request. New York no-fault is a true PIP system: it pays regardless of who caused the crash.

What counts as a "serious injury" under New York law?

Under Insurance Law §5102(d), a "serious injury" is one that meets at least one of these categories: (1) death; (2) dismemberment; (3) significant disfigurement; (4) a fracture; (5) loss of a fetus; (6) permanent loss of use of a body organ, member, function, or system; (7) permanent consequential limitation of use of a body organ or member; (8) significant limitation of use of a body function or system; or (9) a medically determined injury that prevents the injured person from performing substantially all daily activities for at least 90 of the first 180 days following the accident. Only injuries that meet one of these nine categories create the right to sue the at-fault driver for pain and suffering damages — short of that threshold, recovery is limited to no-fault PIP benefits. Disputes over whether an injury meets the threshold are the single most-litigated issue in NY motor-vehicle cases.

How long do I have to sue after a Long Island car accident?

Three years from the date of the accident for personal injury claims under CPLR §214(5). Wrongful death claims have a two-year deadline under EPTL §5-4.1. If a government entity is involved (a county vehicle, a road defect on a state highway, a defective traffic signal, a county bus), you must file a Notice of Claim within 90 days under General Municipal Law §50-e — that's a non-negotiable jurisdictional deadline, and missing it usually bars the claim entirely. Property-damage-only claims have the same three-year clock. The clock starts on the day of the accident, not the day you discover the full extent of an injury.

Can I still recover compensation if I was partly at fault?

Yes. New York is a pure comparative negligence state under CPLR §1411. Even if you were 90% at fault, you can still recover 10% of your damages. (A pending 2026 budget proposal would change this to a 51% bar — meaning a plaintiff who is more than 50% at fault would recover nothing — but that hasn't passed.) Insurance carriers routinely try to inflate the injured driver's percentage of fault to reduce payouts. The percentage assignment is decided by the jury at trial (or negotiated during settlement); it isn't fixed by the police accident report and isn't binding even when the report assigns fault. Reporting practice and the actual legal apportionment are separate questions.

Who can file a wrongful death claim in New York?

Under EPTL §5-4.1, only the personal representative (executor or administrator) of the deceased's estate can bring a wrongful death action — not the deceased's family directly. The estate is opened in Surrogate's Court of the county where the deceased lived. Damages flow to the spouse, children, parents, and other distributees defined under EPTL §4-1.1. Recoverable damages include loss of financial support, loss of parental guidance for surviving children, and conscious pre-death pain and suffering (recovered through a separate "survival action" under EPTL §11-3.2). New York is unusual in NOT allowing surviving family members to recover for their own emotional grief — only economic losses to the estate. The wrongful-death two-year statute of limitations is shorter than the three-year personal-injury statute, so the deadline is critical.

How do I get a copy of the police accident report?

If Suffolk County Police Department (SCPD) responded to the scene, the report is filed under an MV-104A form. In New York State, you can request a copy through the DMV at https://dmv.ny.gov/vehicle-safety/get-copy-accident-report (roughly $7 online, $10 by mail) once the responding agency has uploaded it to the state system, which usually takes 5-10 business days. NCPD and SCPD also have their own direct-request processes through the precinct that responded. If you weren't injured but the property damage exceeded $1,000, New York VTL §605 requires you (the driver) to file your own MV-104 report with the DMV within 10 days regardless of whether police responded.

Disclaimer: Incident information on this page is compiled from public sources including police reports, traffic agencies, and news outlets. It is provided for informational purposes only and may not reflect the most current status of this incident. Do not rely on this information for legal, insurance, or emergency decisions. For emergencies, call 911.