Authorities say Matthew James Ruth, 24, had been terrorizing his ex-girlfriend in the weeks leading up to the attack. Trail cameras set up outside her North Codorus Township farmhouse captured him lurking on the property in camouflage, peering through binoculars. At one point he was carrying an AR-15-style rifle across his shoulders.

The stalking escalated after an August 20 incident where someone set the woman’s car on fire in her driveway. By mid-September, Ruth’s behavior was so concerning that police moved to serve a warrant for stalking charges.

Three fallen Pennsylvania officers remembered (Officer Down Memorial Page).
The deadly afternoon
On September 17, officers first visited Ruth’s home in Penn Township, but he wasn’t there. Acting on information from family members, police then went to the farmhouse where his ex-girlfriend and her mother lived.

When officers arrived just after 2 p.m., they found the front door unlocked. But as soon as they opened it, Ruth unleashed gunfire. What followed was a chaotic shootout involving multiple agencies.

Detective Cody Becker (left) with close friend Aric Fuhrman (Source: Andy Ziegler)
By the end of the standoff, Ruth was dead. Three officers from the Northern York County Regional Police Department were also killed. They were Detective Mark Baker, 53, Detective Isaiah Emenheiser, 43, and Detective Sergeant Cody Becker, 39. Two more officers were wounded but survived.

A community in mourning
The fallen officers have been remembered as hometown heroes. Becker, a Spring Grove native and former high school football star, was celebrated by friends as someone who “never stopped giving back.”

Emenheiser, a devoted father-of-two and fitness enthusiast, was called “the hardest working, most selfless man I’ve ever met,” by a longtime friend. Baker, who had spent three years on the force, was remembered as warm, professional, and loved by colleagues.

A memorial service for the three men is set to be held at Living Word Community Church in York County.

Unanswered questions
The ambush has raised chilling questions about how quickly Ruth’s stalking escalated to lethal violence. For the ex-girlfriend and her mother, trail cameras offered warnings of danger. For police, the footage painted a picture of a young man preparing for an attack.

Authorities say Ruth used the farmhouse, the very place he had once been connected to through a relationship, as the setting for his final act of violence. He waited inside and opened fire as officers entered.

What remains now is a shattered community, three grieving families, and a reminder of the devastating toll stalking cases can take when they turn deadly.