Prosecutor says stalking suspect ambushed Pennsylvania police officers, killing 3

ByMARK SCOLFORO, MARC LEVY and ALANNA DURKIN RICHERAP logo
Friday, September 19, 2025
3 officers killed in ambush shooting: What we're learning

NORTH CODORUS TOWNSHIP, Pa. -- A suspected stalker armed with a rifle hid inside his ex-girlfriend's home in the rolling farmland of southern Pennsylvania and ambushed police officers who came to arrest him, killing three of them, a prosecutor said Thursday.

Police arriving at the scene at about 2:10 p.m. Wednesday noticed the door to the home was unlocked even though the ex-girlfriend and her mother had locked it before leaving for their safety.

The plainclothes detectives wearing bulletproof vests opened the door and were immediately fired upon by the suspect, 24-year-old Matthew James Ruth, who was carrying an AR-style rifle with a suppressor, York County District Attorney Tim Barker said.

From left, Det. Mark Baker, Det. Sgt. Cody Becker and Det. Isaiah Emenheiser, all of the Northern York County Regional Police Department.
From left, Det. Mark Baker, Det. Sgt. Cody Becker and Det. Isaiah Emenheiser, all of the Northern York County Regional Police Department.
(Northern York County Regional Police Department/York County District Attorney's Office via AP)

He said the suspect fired multiple rounds, killing three of the officers at the door. A gunfight then ensued between Ruth and two officers outside. Ruth wounded a sheriff's deputy before police shot the gunman to death, Barker said.

Detective Sgt. Cody Becker, Detective Mark Baker and Detective Isaiah Emenheiser were the officers who were killed, he said. All the officers involved worked for the Northern York County Regional Police Department.

Baker served in the Philadelphia Police Department in the early 2000s, 6abc Action News has learned.

One of the three officers killed in a deadly ambush in York, Pennsylvania, was a former member of the Philadelphia Police Department.

"Each of these men represented the best of policing. They served with professionalism, dedication and courage. They were leaders within our agency, committed to protecting this community and standing beside their follow officers," Chief Dave Lash said.

Investigators also discovered the ex-girlfriend's dog had been shot dead in the basement.

How the shooting unfolded

The violence erupted Wednesday afternoon as officers sought Ruth, who they believed had been at the property the night before. A woman he had briefly dated lived there.

Her mother called police late Tuesday after she spotted a man wearing camouflage looking into the home with binoculars.

Officers also spoke with the daughter, who had a photo from a trail camera showing someone carrying a rifle outside and aiming a scope at the house, according to a police affidavit.

York County District Attorney Tim Barker provides update on shooting that left 3 officers dead.

Ruth eluded police that night, leading them to return the next day with misdemeanor warrants for his arrest. The young woman's car had been set on fire in August and she said she suspected he may have been involved.

Investigators went to Ruth's home in Hanover, about 10 miles (16 kilometers) from where the officers were killed, at about noon on Wednesday and talked to relatives, Barker said. He was not there, so they left at about 1:20 p.m. to try the ex-girlfriend's home again.

They returned to Hanover after the shooting and left with several bags of potential evidence, neighbor Rose Miller said. She didn't know Ruth well, but remembered him working on Boy Scout fundraisers. No one answered the door at the home on Thursday.

Drone 6 flew over the farm house in North Codorus Township where five officers were shot while serving a warrant

A community mourns

Tributes have begun pouring in for the fallen officers. Becker's high school posted a tribute online, and his former wrestling coach told Action News he was a "team leader and great athlete."

Emenheiser was known for his love of fitness and was a father of two.

"We need to do better as a society," Gov. Josh Shapiro said Wednesday evening. "We need to help the people who think that picking up a gun, picking up a weapon, is the answer to resolving disputes."

It was one of the state's deadliest days for law enforcement this century, matching the toll from a shooting in 2009 when three officers were ambushed by a domestic violence suspect sporting a bulletproof vest.

Pennsylvania Gov. Josh Shapiro delivers a statement after a shooting left three police officers dead in York County

Community members held American flags and saluted as police and emergency vehicles formed a procession to the coroner's office, and people left flowers outside the slain officers' headquarters.

The confrontation unfolded on a rural road in North Codorus, about 46 miles north of Baltimore. Neighbor Dirk Anderson heard "quite a few" shots from his home across the street and wondered what was happening. Then he saw a helicopter and police arrive.

In all, some 30 police vehicles arrived, blocking off roads bordered by a barn, a goat farm and soybean and corn fields.

"It's strange walking down this road now and seeing all these cars and knowing what happened here," said Bryan Rice, who lives nearby and regularly walks the road with his wife.

Barker declined to ponder the gunman's "full profile," but said one thing was apparent.

"There is one motive though, that is clear for everything. And that is the hateful scourge of domestic violence," he said. "That is what brought us here. That is what brought law enforcement here."

Another officer was killed in York County in February, when a man armed with a pistol and zip ties entered a hospital's intensive care unit and took staff members hostage before a shootout that left both the man and an officer dead.

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