Neighbor Fatally Shoots Alleged Gunman After Domestic Dispute

Two women were shot during a family argument that spilled into a nearby driveway in Puyallup, Washington.

Apr. 10, 2026 at 4:04am

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An extreme close-up photograph of a single spent bullet casing on a dark, textured surface, lit by a harsh, direct camera flash, conceptually representing the sudden and gritty nature of the shooting incident.A single spent bullet casing, a stark reminder of the violence that erupted in this quiet neighborhood.Puyallup Today

A Washington state man was shot and killed by a neighbor after allegedly opening fire on two women during a domestic dispute that escalated outside the home. One of the victims, 23-year-old Christiannel Lyle Macapagal Maningat, died at the scene, while the second woman was transported to a local hospital with life-threatening injuries. The neighbor who intervened and fatally shot the suspect, 47-year-old Arnino Guanlao, is cooperating with police as detectives investigate the circumstances surrounding the use of force.

Why it matters

This incident highlights the complex and often tragic nature of domestic violence, as well as the challenges law enforcement faces in determining the appropriate use of force when bystanders intervene. The case also raises questions about gun violence, self-defense laws, and the emotional toll on families and communities affected by such events.

The details

According to police, the incident began with a family argument that spilled outside the home in Puyallup, Washington. Guanlao, the victims' stepfather, allegedly opened fire on the two adult female relatives. A neighbor who was inside at the time came outside and intervened, fatally shooting Guanlao. Authorities are still investigating what led to the initial dispute and are processing multiple crime scenes related to the incident.

  • The incident occurred around 9:10 a.m. on April 2, 2026.
  • Christiannel Lyle Macapagal Maningat, 23, died at the scene.
  • The second victim was transported to a local hospital with life-threatening injuries.

The players

Arnino Guanlao

A 47-year-old Washington state man who allegedly opened fire on two women during a domestic dispute.

Christiannel Lyle Macapagal Maningat

A 23-year-old woman who was fatally shot during the incident.

Neighbor

An individual who was inside at the time and came outside to intervene, fatally shooting Guanlao.

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What they’re saying

“There was a girl here who was face down, and she was still breathing a little and trying to move a little, but she wasn't doing much and then pretty quick a cop came on scene and he and I pulled her out, turned her over and found her gunshot wound on her abdomen.”

— Michelle Weingarden-Bandes, Neighbor

“We are all not just in shock about what we saw, those of us who were out here this morning, but that this has happened in our neighborhood.”

— Michelle Weingarden-Bandes, Neighbor

What’s next

Detectives are continuing to investigate the incident, including reviewing the neighbor's use of force and determining what led to the initial dispute between Guanlao and the two women.

The takeaway

This tragic incident underscores the need for greater resources and support to address domestic violence, as well as the complex legal and ethical considerations surrounding the use of force by bystanders. The community is left grappling with the emotional aftermath and searching for ways to prevent such violence in the future.