Authorities say Nathaniel Veltman deliberately targeted Muslims in deadly, hate-fuelled attack in Ontario in 2021.

Jury selection begins on Tuesday in the trial of Nathaniel Veltman, who faces four counts of first-degree murder and one count of attempted murder for the June 6, 2021, attack in London, a city about 200km (125 miles) west of Toronto.

Salman Afzaal, 46, his wife Madiha, 44, their 15-year-old daughter Yumna, and Salman’s mother, Talat, 74, were killed after being run over with a pick-up truck while out for a walk. The couple’s nine-year-old son was seriously injured.

Authorities said at the time that the family was “targeted because of their Islamic faith” and they have since charged Veltman with “terrorism” offences.

“We will be watching this trial closely,” the National Council of Canadian Muslims advocacy group said in a statement on Monday afternoon.

“Justice should be served,” relative Shaukat Rizvi told the Toronto Star newspaper before this week’s legal proceedings, which are being held in the Ontario Superior Court of Justice in the city of Windsor.

“We have confidence in the Canadian justice system,” Rizvi said.

The killings renewed trauma for Muslim community members across Canada, many of whom were still reeling in the aftermath of a deadly 2017 assault on a Quebec City mosque and a fatal stabbing at another mosque in Toronto in 2020.

It also prompted Prime Minister Justin Trudeau’s government to hold a national summit on Islamophobia, and in January of this year, Canada appointed its first special representative to tackle the issue.

The representative, Amira Elghawaby, said Tuesday would be “heavy for the relatives of the Afzasal family and their surviving son”, as well as members of Muslim communities in London and across Canada.

“We will not forget: Talat, Madiha, Yumnah, Salman,” Elghawaby wrote on social media.

We will not forget: Talat, Madiha, Yumnah, Salman 💔

Tomorrow will be heavy for the relatives of the Afzaal family and their surviving son, as well as London’s Muslims & wider community which showed up with love and solidarity in the painful aftermath of the hate-motivated…

— Amira Elghawaby (@AmiraElghawaby) September 5, 2023

In June, the Ontario government announced it was investing about $372,000 (500,000 Canadian dollars) to help London develop an anti-hate public education campaign and an online library of resources.

London Mayor Josh Morgan said at the time that the investment would help “promote acceptance” in the city. “Not only must we speak out against hatred, we must also take decisive and tangible action – and that’s exactly what this funding allows us to do,” Morgan said.

Veltman’s trial in Windsor is expected to last 12 weeks, Canadian media outlets have reported.

“The trial will mark the first time since Canada passed its anti-terrorism laws that terrorism will be argued before a jury in a first-degree murder case,” the London Free Press also said on Tuesday.

Veltman’s lawyer, Christopher Hicks, said in 2021 that his client has the presumption of innocence.

“Every person, including Nathaniel Veltman, has the presumption of innocence. That’s very important,” Hicks said at the time.