The Army staff sergeant charged with killing one Prince William County police officer and injuring two others on Saturday opened fire as they arrived at his front door to investigate a domestic altercation, the Prince William County police chief said Sunday.

Chief Stephan M. Hudson said at an afternoon news conference that Ronald Williams Hamilton, 32, also shot and killed his wife in their Woodbridge home, before the officers arrived on the scene. Crystal Hamilton, 29, had placed the initial call to police.

“A subject inside the home opened fire striking three officers who sustained critical wounds,” Hudson said. “Additional officers arrived at scene and secured subject.”

Hudson said the two injured officers, Jesse Hempen and David McKeown, remain hospitalized and are expected to recover.

Prince William County prosecutor Paul Ebert said at the news conference that he is considering pursuing the death penalty against Hamilton, who is currently facing six charges including murder of a police officer and first-murder.

Hudson said Officer Ashley Guindon succumbed to her injuries Saturday evening, while undergoing treatment at Fairfax Inova Hospital. Guindon was on her first street patrol, after being sworn in as an officer Friday.

The shooting happened around 5:40 p.m. in the 13000 block of Lashmere Court in Woodbridge, almost as soon as officers arrived, Hudson said. Police said the couple’s 11-year-old son was in the home at the time of the incident and fled the home at some point during the encounter. He was not injured and has been placed in the care of relatives.

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