Sen. William Cowan portrait unveiling

A portrait of former Massachusetts Sen. William “Mo” Cowan, a beloved member of the Northeastern University community, now lives in the Boston campus’s Law Library. Thursday’s unveiling brought dignitaries including former Gov. Deval Patrick, former Supreme Court Chief Justice Roderick Ireland and present SJC Chief Justice Kimbrly Budd to the campus to pay tribute to a man who helped shape Massachusetts state politics. PHOTO: ALYSSA STONE