To give you some perspective, I wasn't alive during the Manson killings. You are either the most sensitive person in the world or you just woke up from a coma.
The thought that someone could come into our homes, in the middle of the night, and carve us to bits and write satanic verse on the walls and sheets with their blood, cut through Los Angeles and surrounding areas like a knife.
The trial of these people only added to the horror.
I take it you never read Helter Skelter? Here is a link on CourtTv with the whole story... this wasn't your run-of-the-mill crime for those days or even in this crazy time.
http://www.crimelibrary.com/serial_killers/notorious/manson/murder_1.html