John Rosen is a Canadian criminal defence lawyer, who has defended the most murder trials in Ontario's history, and perhaps in Canadian history. He has defended some of the most notorious criminals in Canadian history, including Paul Bernardo, Pat and Angelo Musitano, Min Chen, Paul Volpe, Johnny Papalia, Carmen Barillaro and Pietro Scarcella. He is a partner in the Toronto law firm of Rosen Naster LLP.John Rosen's grandparents immigrated to Toronto from Poland in the early 1900s. He is the eldest of six children, whom his father supported with his Bay Street dry-cleaning shop, Imperial Cleaners, across from the Toronto Coach Terminal. At age 16, Rosen began driving the dry-cleaning delivery truck after school. Wikipedia