This Is the Zodiac Speaking - Lettere da un serial killer

Most of us have seen the Fincher movie covering the facts ( but having watched this series , the aforementioned facts are brought into question ) , but if you haven't , I'd recommend that you do , to give a reasonable perspective . A serial killer - one of several at the time - terrorised the California area throughout the sixties and seventies . Part of his modus operandi was taunting both the Press and the Police departments of the affected crime scenes . The movie was released in 2007 and they couldn't portray several details as the prime suspect was at that point unproven . This series unravels why and it doesn't show the detectives in the original investigation in a great light . Add to that , the incredible involvement of a whole family , who could be deemed complicit , if not naive in the extreme .