A Florida woman said she feared for her life when she brutally murdered her long-time boyfriend, claiming the man would have killed her if she hadn’t taken the extreme action. Catherine Pileggi had been in an on-and-off relationship for two decades with Ronald Vinci, Oxygen reported. On June 27, 2011, Vinci was murdered at his own house in Fort Lauderdale, and Pileggi was identified as the main suspect. On June 28, 2011, Vinci’s friend,Spencer Gordon, called 911 and said that an accident had happened at his friend’s house. He told dispatchers that someone had fallen down the stairs and died. P…