Stony Brook, NY — A tragic accident early Saturday morning has left one young man dead and another facing serious criminal charges, following a suspected driving while intoxicated (DWI) crash on Route 347, also known as Nesconset Highway.

Authorities confirmed that Jerry Diaz, age 24, of Nesconset, was killed in the collision, which occurred just after midnight near New Moriches Road, close to Whole Foods Market and the Smith Haven Mall.

Details of the Crash
According to Suffolk County Police, the incident took place at approximately 12:22 a.m. when Diaz was traveling westbound on his 2022 Honda motorcycle. At the same time, a 2017 GMC truck driven by Mark Anthony Giordano, 25, of St. James, attempted to make a left turn from New Moriches Road onto Route 347.

The motorcycle collided with the truck, and the force of the impact proved fatal. Diaz was pronounced dead at the scene. Giordano, who authorities say was driving under the influence, was taken into custody shortly after the accident. Police confirmed he has been charged with DWI.

Aftermath and Investigation
Both vehicles were impounded as investigators from the Major Case Unit continue to examine the circumstances of the crash. Detectives are working to reconstruct the collision and gather witness accounts. Authorities have urged anyone with additional information to contact the Major Case Unit at 631-852-6553.

Giordano was held overnight at the Sixth Precinct and is scheduled to be arraigned at First District Court in Central Islip on Saturday.

Community Impact
The news of Diaz’s death has devastated his family, friends, and the wider Nesconset community. At just 24 years old, he was described by those who knew him as a vibrant and ambitious young man with his future ahead of him. His passion for motorcycles and his warm personality made him well-loved by his peers.

For the community, the tragedy is another painful reminder of the dangers of impaired driving. Many local residents expressed frustration and heartbreak, noting that such crashes are preventable. “One bad decision can destroy so many lives,” said one neighbor who frequently drives the Route 347 corridor.

The Dangers of Route 347
Route 347 is known as one of Suffolk County’s busiest and most hazardous roadways. The wide highway, lined with businesses, shopping centers, and residential areas, has long been the focus of traffic safety concerns. Accidents — particularly at intersections like New Moriches Road — are unfortunately common, and Saturday morning’s collision adds to that troubling record.

Local officials and traffic safety advocates have repeatedly emphasized the importance of responsible driving, particularly avoiding alcohol or drug impairment. “Crashes like this are preventable,” one advocate noted, urging drivers to plan ahead, use ridesharing services, or designate a sober driver.

Looking Ahead
As the investigation continues, Diaz’s loved ones are preparing to lay him to rest while grappling with the sudden and senseless nature of his passing. Vigils and memorial tributes are expected to be organized in the coming days to honor his life and provide comfort to his grieving family.

Meanwhile, Giordano faces criminal proceedings that could carry serious legal consequences, including jail time, fines, and the permanent weight of responsibility for a young man’s death.

The tragedy underscores a stark reality: driving while impaired not only endangers the driver but also devastates the lives of others. For the Diaz family and the Suffolk County community, the loss is immeasurable, and the message is clear — one reckless choice can change everything in an instant.