"Following a three-month investigation, SPVM (Montreal police) investigators managed to apprehend two suspects, Karim Atay, 18, and Esteban Paoli-Sosa, 20"

I think their names and ages rule out the possibility that the remaining Rizzutos tried to hit or kidnap Tony Suzuki because he sided with the HA. And the attack was very amateur hour.

I think it was either a random mugging or maybe one of the gangs that the HA is feuding with tried to snatch him because he was known as a big importer.