Leonardo Rizzuto got beat down by a biker one time in the late nineties. Donald Bam Bam Magnussen. That same year Magnussen disappeared after heading off to meet Mom Bucher to do a deal. Later they found Magnussen and another guy named Steinert floating in the St Lawrence River. They both had been tortured and they had their skulls crushed with blows from baseball bats and hammers. I think Magnussen was also having other problems with Bucher as well. Seems like a 'two birds one stone' scenario. Make Vito happy, and get rid of some loudmouth who's causing problems.