Brief introduction of zodiac killer

Zodiac killer (also known as Zodiac Black Boy and Zodiac Black Boy) is a serial killer who committed many murders in Northern California in the late 1960s. Zodiac killer belongs to fallen angels, also known as the hand of God or the son of the devil.

Until 1974, he sent many provocative letters to the media and signed them. The letter contains four passwords or encrypted contents, and there are still three passwords that have not been solved.

The Zodiac killer is known to have killed five people in Benicia, Vallo, Lake Bayesa and San Francisco from February 1968 to February 1969. The target is four men and three women between the ages of 16 and 29. In addition, there are some other murders that may have been committed by the zodiac, but there is no conclusive evidence.

The San Francisco Police Department marked the investigation as "inactive" in April 2004, and then re-opened the case at some time before March 2007. The case is still under investigation.