 Kalmansohn is a member of the State Bar of California, the District of Columbia Bar and the United States Supreme Court Bar.Kalmansohn, a Jewish-American of Lithuanian lineage, served as a federal prosecutor from 1977 to 1983.Years after Kozminski's initial federal convictions, and still vowing rightful justice for the Holocaust survivors twice-victimized by Kozminski, Kalmansohn independently undertook a lengthy investigation and two (pro bono) civil actions to make Kozminski pay for his crimes against humanity.