the alliance or support the rizzuto's had w/ the musitanos was in the late 90's and ended with the imprisonment of both musitano bros.
there has been no evidence since that an alliance still exists.
as to who is killing mafia members/asociates in hamilton there r many different theories:
1.musitano bros. vs.luppino/violi faction of buffalo family.
-fighting over majority control of city of hamilton.

2.MTL HA/ON HA vs. musitano bros
-fighting over any remaining control musitanos have over illegal gambling.London HA using outside muscle from MTL.

3.London HA/Figliomeni 'ndrine vs.both
-as the projects sindicato and hobart have shown this alliance of 'ndrangheta and HA was very powerful and dominated gambling and money laundering in the southern ontario area.