Now Zhang, 25, has been remanded in prison awaiting trial on 33 fresh charges, including robbery, fraud and driving while prohibited.
Zhang was one of Canada's most wanted fugitives.
"I am glad this man has been caught because there is so much pain that gets inflicted when there is someone like that out there," Bell told the Herald on Sunday.
"It was inevitable that other people would suffer the consequences of him being free."
Zhang ran over Higgins, voted Tauranga's best GP in 2004, on a pedestrian crossing and left him dying in the street.
Higgins and his two daughters were in Vancouver to visit his parents, who were celebrating their 80th birthdays.
"I am sure it will be such a relief for them to know the world is now a bit of a safer place," Bell said.
Higgins was her soul-mate.
"I have never been interested in another relationship," she said. "I just can't."