A west Edmonton neighbourhood erupted in chaos Monday night as one police officer was killed and another injured in a shooting that one witness said started out as a routine arrest.

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What we know so far

The incident:

-The officers had been delivering an arrest warrant for criminal harassment when they came under gunfire, Edmonton Police Chief Rod Knecht says

The shooter:

-Suspect identified as Norman Walter Raddatz

-Age: 42

-History with police: Suspect had been the focus of a lengthy hate-crimes investigation

-Status: He is believed to have died in the burning remains of the bungalow

Read Tu Thanh Ha's report on the suspect

The dead officer:

-Constable Daniel Woodall

-Age: 35

-Career: Was recruited from Britain and used to serve with the Greater Manchester Police; spent eight years on the Edmonton police

-Family: Leaves a wife and two young children; tweet attributed to his wife posted Tuesday said that the generous outpouring of love for her and her two boys filled her heart, and she described her husband as "Edmonton’s newest hero"

British police force remembers fallen colleague

The injured officer:

-Sergeant Jason Harley

-Age: 38

-Career: Worked for the Edmonton police hate-crimes unit

-Status: Released from hospital; police said he was shot in the lower back but protected by a bulletproof vest

Sgt Harley was the first officer shot. His body armour saved his life. #eps #EPSstrong #yeg — Edmonton Police (@edmontonpolice) June 9, 2015

Police officers block off roads surrounding 184th Street and 62nd Avenue in Edmonton on June 8. (Topher Seguin/Reuters)

What witnesses say happened

RYAN

A man named Ryan told radio station CHED he is the neighbour of the shooter and was there when everything happened. “I was on my back deck, saw what I thought was a routine arrest,” he said.

“They had six officers come over … they didn’t know if he had any weapons in the house, and when they went to breach the door that’s when the fire started. [The shooter] did fire on two officers, hit one in the back. I helped the one officer, got him out to the side, got him into the car. The bullet was stopped by his vest, but it did pierce through his skin.”

Ryan said the shooter was using a high-powered rifle and set his house on fire while he was still inside. “He’s a single guy, two kids, wife left him along time ago,” Ryan told CHED. “Sits at home every day, he’s an alcoholic, just snapped. I don’t know what they were arresting him for, but they had a file for him.”

SERGEI MASKALIOU

Sergei Maskaliou said a friend of his lived next door to the shooter and was home watching television when he heard shots. “My friend and his family, they suspected there was something going on with his neighbour,” he said. “His behaviour was really weird.”

Maskaliou said his friend had told him the man wasn’t working and hadn’t been paying his mortgage. “My friend said this guy was really broken … that he divorced and was living alone.”

Police surround the scene. (Jason Franson/The Canadian Press)

The crime scene

A massive police presence quickly gathered after the shooting, with dozens of police cars, a police helicopter and three ambulances on scene. Smoke also started billowing from a house in the neighbourhood and police evacuated several homes.

Fire trucks stood at the ready to move in once the scene was contained and safe enough for them to move in. However, the smell of black smoke hung in the air for hours.

At one point, two ambulances left the scene with a police escort.

Past killings

This is the second police officer to be shot and killed in the Edmonton area this year.

January: RCMP Constable David Wynn, 42, died at a casino in St. Albert, north of Edmonton, while trying to track down the driver of a stolen truck. Auxiliary Constable Derek Bond was seriously injured but survived. The shooter, Shawn Maxwell Rehn, was out on bail facing 15 charges, including escaping lawful custody, possession of a prohibited firearm and failure to show up to a previous bail hearing on the charges. On Monday, an Alberta MP introduced a private member’s bill named after Wynn to ensure bail hearings have an accused’s criminal history.

May: Last month an Edmonton police officer was shot and wounded during an impaired driving stop. The suspect in that shooting was killed.

The last officer to be killed on the job within the Edmonton city limits was Constable Ezio Faraone, a 33-year-old officer who was gunned down on June 25, 1990, while trying to arrest a suspect who was fleeing from an armed robbery.

With a report from Affan Chowdhry