The name of the victim has not been released because not all members of the extended family have been notfied -- see https://twitter.com/HamiltonPolice/status/1091007206273806336.

Seems that the victim is not Giacomo Luppino's son Rocco -- see Hamilton Police Service release to which I've linked below.

Hamilton Male Suffers Fatal Wound

http://hamiltonpolice.on.ca/news/hamilton-male-suffers-fatal-wound/