Three children who were killed in a car crash in Vaughan, Ont. last month knew of the man accused of impaired driving in the case, their mother said.

Jennifer Neville-Lake spoke outside of a Newmarket courthouse Monday.

"We have seen him on multiple occasions in King City," Neville-Lake told reporters.

"They have assisted him when he's dropped things at the store, and picked them up and handed them to him," she said.

She said he had also bought an apple outside of a grocery store from her son when he was selling fruit as a fundraiser for Cub Scouts.

"No matter what happens, we have no family left," Neville-Lake said.

She told reporters that her family has "full confidence" in the court system and the police.

"I wanted to come and I wanted to see the man who's allegedly the reason I don't have children anymore," she said.

Marco Muzzo, 29, is facing several charges following the Sept. 27 crash that claimed the lives of 9-year-old Daniel, 5-year-old Harrison (Harry) and 2-year-old Milagros (Milly) Neville-Lake. The children were buried in a private funeral on Saturday.

The children's 65-year-old grandfather Gary Neville was also killed in the crash. Their grandmother and great-grandmother were also injured in the crash, and are still receiving care for their injuries.

Muzzo appeared briefly in court on Monday, and only spoke audibly to say his name. He whispered quietly to his lawyer and kept his head down.

His lawyer, Brian Greenspan, told reporters that the trial is still in the disclosure process.

Greenspan said the trial was remanded until Nov. 12, at which time Muzzo will appear by video only.

Neville-Lake told reporters that the new date for Muzzo's bail hearing is the day of her parents' wedding anniversary.

"They would have been married 38 years," she said.

"It's going to be a very, very special day for us, regardless of the outcome."

Last month, Muzzo was charged with 18 offences including impaired driving causing death and dangerous operation of a motor vehicle causing death.

Police sources told CTV Toronto's Tamara Cherry that Muzzo was driving at least 120 km/h in a 60 km/h zone, when he ran a stop sign and T-boned the Lakes' van. The same sources also said that Muzzo took two breath tests after the crash, and allegedly blowing more than twice the legal limit of 80 milligrams in both tests.

The allegations have not been proven in court.

Muzzo is part of a family that owns a construction empire estimated to be worth more than $1 billion. The family owns Marel Contractors, based in Vaughan, which operates in Toronto, Ottawa, Calgary and southwestern Ontario.