Salvadorian National Sentenced to 20 Years for Fatal Copiague Deli Stabbing; Plead Guilty to Manslaughter, First Degree

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Copiague Stabbing
Mugshot of 29-year-old Gherson Lopez, who was sentenced to 20 years in prison for the 2023 fatal stabbing of a man outside a deli in Copiague. Photo courtesy of Suffolk County District Attorney’s Office

COPIAGUE, N.Y. – A 29-year-old Salvadorian national has been sentenced to 20 years in prison for the 2023 fatal stabbing of a man outside a deli in Copiague, the Suffolk County District Attorney’s Office announced.

The defendant, identified as Gherson Lopez, pleaded guilty in June to Manslaughter in the First Degree, a Class B violent felony, in connection with the killing of 34-year-old Jose Argueta-Canales.

According to investigators, the incident took place on May 15, 2023, outside a deli in Copiague. Lopez and the victim were smoking when a verbal dispute broke out. The confrontation turned physical but ended after Lopez complained of injuring his hand. The two men shook hands, and Argueta-Canales sat on a bench near the deli to eat. Moments later, another exchange of words occurred, during which Lopez stood over the seated victim and stabbed him twice in the chest. Argueta-Canales died from his injuries.

On September 26, 2025, Supreme Court Justice Richard Ambro sentenced Lopez to 20 years in prison, followed by five years of post-release supervision. He was represented in court by attorney Christopher Gioe.

Copiague Stabbing

Key DetailInformation
DefendantGherson Lopez, 29
VictimJose Argueta-Canales, 34
Incident DateMay 15, 2023
LocationOutside a deli in Copiague, Suffolk County
ChargeManslaughter in the First Degree (Class B violent felony)
PleaGuilty (June 11, 2025)
Sentencing DateSeptember 26, 2025
Sentence20 years in prison, followed by 5 years post-release supervision
JudgeSupreme Court Justice Richard Ambro
Defense AttorneyChristopher Gioe, Esq.

Q&A Copiague Stabbing

What is Manslaughter in the First Degree?
In New York, Manslaughter in the First Degree is a Class B violent felony. It typically involves intentionally causing serious physical injury that results in death, or killing someone under circumstances that show intent but not premeditation.

How does this differ from Murder?
Murder charges generally require proof of intent to kill and, in some cases, premeditation. Manslaughter, while still intentional, is considered a step down because it lacks certain elements such as prolonged planning or extreme depravity.

What happens after sentencing?
Following sentencing, Lopez will serve his prison term in a New York State correctional facility. After completing his 20-year sentence, he will be subject to five years of post-release supervision, during which his activities and compliance with the law will be closely monitored.

Could Lopez face deportation?
As a Salvadorian national, Lopez could face immigration consequences, including potential deportation proceedings, after serving his prison term.

Important: This story is categorized as a crime story and thus it is important to note that charges are accusations and defendants are presumed innocent until proven guilty in a court of law.
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