This book is a marvel for all enthusiasts of the phenomenon 'Serial Killer'. Written with brio and aggrémenté photos and drawings, Graysmith (a cartoonist for the newspaper Chronical and not a police officer), traces the bloody path of this mysterious killer who was never unmasked. Officially six murders attributed to him, unofficially over thirty.
Beyond the quest for the identity of the murderer, Graysmith points to all the dysfunctional judicial system have also contributed to the failure of the investigation.
In short, a fascinating book to possess!
For English speakers and those who want can go one further, I can only advise the original version and has handed day "Zodiac Unmasked: The Identity of America's Most Elusive Serial Killer Revealed" ... a must!