Delaware State Police

Superintendent Colonel William D. Crotty

State Police Homicide Unit Arrests Millsboro Man for Murder

Date Posted: Friday, March 20th, 2026

Graphic titled “Homicide Investigation” showing a Delaware State Police detective and trooper at a staged crime scene with police vehicles and yellow crime scene tape overlaying the image. A silhouette map of Delaware appears on the left, the text “BecomeATrooper.com” on the bottom center, and social media icons are shown at the bottom right corner.

Graphic titled “Homicide Investigation” showing a Delaware State Police detective and trooper at a staged crime scene with police vehicles and yellow crime scene tape overlaying the image. A silhouette map of Delaware appears on the left, the text “BecomeATrooper.com” on the bottom center, and social media icons are shown at the bottom right corner.

The Delaware State Police have arrested 40-year-old John Sulecki of Millsboro, Delaware, for the murder of a family member on Thursday in Millsboro.

On March 19, 2026, at approximately 12:10 p.m., troopers responded to a residence on White Pine Drive within The Pines at Long Neck community. A third-party family member, who had run from the residence and called 9-1-1, reported that Sulecki had a gun and had shot a 72-year-old female relative during an argument.

When troopers arrived, Sulecki was taken into custody without incident. The victim was found in the house with a suspected gunshot wound and pronounced dead at the scene by emergency medical personnel.

Due to the nature of the incident, the Delaware State Police Homicide Unit assumed the investigation. Detectives learned that Sulecki and the victim were involved in an argument, and while in a back room of the house, he shot her.

Sulecki was taken to Troop 7, where he was charged with the offenses listed below, arraigned by the Justice of the Peace Court 2, and committed to the Sussex Correctional Institution on a $1,060,000 cash bond.

Mugshot of John Sulecki

Murder First Degree (Felony)
Possession of a Firearm During the Commission of a Felony (Felony)

The investigation remains ongoing, and detectives are asking anyone with information about this case to contact Detective D. Patterson at (302) 365-8471. Information can also be provided by sending a private Facebook message to the Delaware State Police or by contacting Delaware Crime Stoppers at (800) 847-3333.

If you or someone you know is a victim or witness of a crime or has lost a loved one to a sudden death and needs assistance, the Delaware State Police Victim Services Unit / Delaware Victim Center is available to offer you support and resources 24 hours a day through a toll-free hotline at 1-800-VICTIM-1 (1-800-842-8461). You may also email the Victim Services Unit at DSP_VictimServicesMail@delaware.gov.