Warning: This article contains details that may disturb some people.
A man who allegedly rammed and killed a Canadian Muslim family with his ute last week was laughing as police arrested him in a car park, a witness says.
The four victims, spanning three generations, were killed when Nathaniel Veltman, 20, ran into them while they were out for an evening walk near their home in London, Ontario - in an attack police said was driven by anti-Islamic hate.
A fifth family member, a nine-year-old boy, is recovering from his injuries in hospital.
Veltman was arrested in the car park of a London mall after fleeing the scene of the attack. Police said it was premeditated and allege the family was targeted due to their Islamic faith.
Speaking to The London Free Press earlier this week, Hassan Savehilaghi - the boss of a taxi driver who witnessed Veltman being arrested - said the alleged attacker was wearing what looked like a military-style helmet and bullet-proof vest.
"When they got him out of the vehicle, he was laughing," Savehilaghi said.
On Saturday (local time), hundreds of mourners joined a public funeral service for the family - who moved to Canada from Pakistan around 14 years ago.
Veltman, who returns to court on Monday, faces four charges of first-degree murder and one of attempted murder.
Canada Prime Minister Justin Trudeau has called the killings a "terrorist attack" and vowed to crack down on far-right groups and online hate.
Reuters / Newshub.