Heriberto Seda and Kobe child murders are examples of Zodiac copycats.
The Zodiac Killer is an unidentified serial killer who operated in Northern California in the late 1960s. He murdered five victims in the San Francisco Bay Area between December 1968 and October 1969,
targeting young couples and a lone male cab driver. Two of his wounded victims survived, and he claimed to have murdered 37 victims.
He has been linked to several other cold cases, some in Southern California or outside the state.The Zodiac was a serial killer who threatened killing sprees and bombings if they were not printed.
He used four ciphers, two of which remain unsolved, and one was cracked in 2020.
Arthur Leigh Allen, a former elementary school teacher and convicted sex offender, was the only suspect authorities ever publicly named.
The Zodiac case has been a source of international interest since 1974. The San Francisco Police Department marked it "inactive" in 2004, but re-opened it in 2007.
The case remains open in Vallejo, Napa and Solano counties, and the California Department of Justice has maintained an open case file since 1969.
The first murders attributed to the Zodiac Killer were the shootings of Betty Lou Jensen and David Arthur Faraday on December 20, 1968.
They were on their first date and planned to attend a Christmas concert at Hogan High School.