Kim's slaying comes at a time when many of Ontario's 2,400 or so Korean convenience store owners are feeling more vulnerable to holdups than ever before thanks, they say, to increased cigarette prices.
Sam Kook, who trained as an accountant in Korea, worked in a Canada Packers factory for several years before he was laid off.
One of Sam Kook's daughters is a minor-league baseball umpire and the other is a student at York University.
Kim makes it a rule to have five identical cars driving in convoy on his trips by road, Yonhap news agency quoted ex-bodyguard Lee Young-Kook as saying.
Kim fears assassination at the hands of his own people, according to Lee, saying the North Korean dictator is haunted by the fate of Romanian dictator Nicolae Ceaucescu, shot dead along with his wife in a 1989 popular revolt.
Amid growing security fears, Kim has increased the number of loyalist bodyguards to more than 8,000 from 280 in the 1970s on top of 100,000 elite forces who are powerful enough to crush any military revolt, Lee said.