A timeline of the Fredericton shooting that killed 4 people, including 2 officers

Two Fredericton police officers, one local musician and an unidentified woman are among the four people who were killed in a shooting in the city Friday morning.

The Fredericton Police Force says they have one suspect in custody and that the suspect is being treated for serious injuries.

READ MORE: 2 Fredericton police officers among 4 people killed in shooting, suspect in custody

Here is a timeline of how the events unfolded Friday morning (all times AT):

• 7:47 a.m.: The Fredericton Police Force takes to Twitter asking people to avoid the area of Brookside Drive due to an ongoing incident.
• 7:53 a.m.: Fredericton police impose a lockdown for those living on Brookside Drive.
• 8:17 a.m.: Fredericton police confirm they are investigating a shooting with multiple fatalities. Police asked residents to avoid the area of Brookside Drive between Main and Ring Road.
• 8:31 a.m.: Police say that four people have died as a result of the shooting, and ask residents to continue avoiding the area of Brookside Drive between Main and Ring roads.

• 9:25 a.m.: Fredericton police ask the public to not post information about the position or activities of police or first responders. Police added that the incident remains active.
• 9:45 a.m.: Police confirm that a suspect was taken into custody, but continued to ask the public to avoid the Brookside area for “the foreseeable future.”
• 9:49 a.m. New Brunswick Premier Brian Gallant sends condolences to the victims and their families, while urging residents to follow police instructions.

0:50 Fredericton police release names of 2 officers killed in shooting

• Fredericton police release names of 2 officers killed in shooting
• Fredericton shooting: Brian Gallant commends ‘brave’ job of police and first responders
• Fredericton shooting: Resident ‘woke up to gunshots’, saw bodies in the street
• Fredericton shooting: Police outline timeline of deadly gunfire
• ‘We’ll heal together’: Fredericton mayor responds to shooting
• Fredericton shooting: Resident describes ‘chaos’ as shooting unfolded
• Fredericton police confirm 1 male, 1 female killed in shooting
• Goodale says Ottawa working to reduce gun violence, can’t comment yet on Fredericton shooting
• Goodale says Fredericton shooting investigation to be done by local police, RCMP to provide support
• 2 Fredericton police officers among 4 people killed in shooting, suspect in custody
• Fredericton shooting: Brian Gallant says response to shooting changing ‘hour-by-hour’
• ‘I saw 3 bodies laying there’: witnesses react to Fredericton shooting
• Fredericton shooting: police and ambulance on scene after deadly shooting

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• 10:12 a.m. Prime Minister Justin Trudeau sends a tweet saying his heart goes out to everyone affected by the shooting and that they’re watching the situation closely.

• 10:28 a.m.: Police confirm that two of the victims of the shooting were Fredericton police officers. Their names have not been released, and police asked for the public to “appreciate this is a difficult time for their families and our colleagues.”

• 11:04 a.m.: Police lift the lockdown imposed on Brookside Drive between Main and Ring roads, confirming that there is no further threat to the public.
• 11:06 a.m.: Horizon Health tweets that their Dr. Everett Chalmers Regional Hospital is treating multiple shooting victims.

• 11:23 a.m.: Police tweet that the suspect in custody is being treated for serious injuries.
• 11:43 a.m.: Mayor Mike O’Brien sends a tweet saying “our hearts are broken by the murder of our two brave police officers,” adding that now is a time for shock and grief.

• Police identify the two officers who died as 45-year-old Const. Robb Costello, a 20-year veteran of the force, and 43-year-old Const. Sara Burns, who joined the force two years ago.

• August 11: Sean Callahan identifies his cousin Donnie Robichaud as one of the two civilians killed in Friday’s mass shooting. Callahan says his cousin was a father of three.