Pino Bertinelli was Helena Bertinelli's brother, killed by Omerta under orders from Stefano Mandragora, alongside their mother; Maria Bertinelli and their father; Franco Bertinelli, when Helena was a young girl. His death, along with their parents', inspired Helena to become the vigilante known as the Huntress.
Pino Bertinelli was created by Greg Rucka, first appearing in Batman/Huntress: Cry for Blood #1. (2000)