- Matthew James Ruth was a 24-year-old Hanover resident involved in stalking and harassment of his ex-girlfriend.
- He ambushed police officers entering the ex-girlfriend’s home, killing three detectives and injuring two officers before being fatally shot.
- Ruth’s pattern of violent behavior included setting his ex-girlfriend’s car on fire and killing her dog.
- The incident has drawn attention to the deadly consequences of domestic violence and stalking in rural communities.
Matthew James Ruth has been identified as the 24-year-old gunman who ambushed police officers in North Codorus Township, near Hanover, Pennsylvania, on September 17, 2025. The attack resulted in the tragic deaths of three detectives and injuries to two others, marking one of the deadliest assaults on law enforcement in the region in decades.
Ruth’s actions stemmed from a domestic violence and stalking situation involving his ex-girlfriend, which led police to attempt to serve arrest warrants at her home. This article provides a comprehensive overview of who Matthew James Ruth is and the events surrounding the shooting.

Who Is Hanover Resident Matthew James Ruth?
Matthew James Ruth was a 24-year-old resident of Hanover, Pennsylvania. Neighbors described him as a local who participated in community activities like Boy Scout fundraisers. However, recent events have painted a much darker picture of his actions leading up to the shooting incident.
Authorities reveal Ruth had been involved in stalking, trespassing, and harassing his ex-girlfriend, which culminated in a police investigation and arrest attempts.
Details of the Shooting Incident Involving Matthew James Ruth
On September 17, 2025, law enforcement officers arrived at the home of Ruth’s ex-girlfriend to serve misdemeanor warrants related to stalking and harassment allegations. Ruth was reportedly hiding inside the residence and ambushed the officers with an AR-15-style rifle outfitted with a suppressor.
The attack resulted in the deaths of three detectives Sgt. Cody Becker, Detective Mark Baker, and Detective Isaiah Emenheiser and left two other officers seriously injured. Ruth was killed after officers returned fire in a tense and violent standoff.
Matthew James Ruth has been identified as the suspect in the fatal shooting of three police officers in North Codorus Township, York County, Pennsylvania, as they served a stalking warrant. Two more officers were injured in the shooting. pic.twitter.com/2s6RQT9OSf
— GeoTechWar (@geotechwar) September 18, 2025
Ruth’s Obsession and Behavior Before the Shooting
Investigators uncovered chilling details about Ruth’s behavior prior to the shooting. He had been stalking his ex-girlfriend, even being captured on a trail camera the previous night near her home dressed in camouflage and carrying a rifle.
The woman’s mother had alerted police after spotting a man peering into the residence with binoculars. In addition to his stalking, Ruth allegedly set his ex-girlfriend’s car on fire in August and shot and killed the family dog in the basement of the home before the shootout.
Community and Official Reactions to the Incident
The attack sent shockwaves through York County and Pennsylvania communities. Officials, including Governor Josh Shapiro, condemned the violence, highlighting the dangers law enforcement officers face and the societal need to address domestic violence and gun violence.
The tragedy spurred calls for better support systems and preventive measures to protect victims of stalking and domestic abuse. Police leaders praised the fallen officers for their dedication and courage in the line of duty.
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Last Updated on September 19, 2025 by 247 News Around The World