So, just who is Ross Sullivan ... used a knife as a weapon, and left military boot prints at the crime scene, all details in line with the Zodiac's M.O. The Riverside Police Department has ...

One individual who fell foul of the hunt for the killer was Ross Sullivan, a student and library assistant at Riverside City College in California. While the Zodiac had five confirmed murders ...

Earl Van Best Jr., Ross Sullivan, and Louis Joseph Myers. Related: Is Sweet Bobby's Kirat Assi dating again? Gary Francis Poste was named the Zodiac Killer by a group called The Case Breakers ...

Library assistant Ross Sullivan emerged as a person of interest due to potential connections between the Zodiac Killer and ...

Additionally, he claims that Van Best was interested in cryptography like the killer, and the musicals of Gilbert and Sullivan (another favorite of the Zodiac). He also reportedly lived two blocks ...

The Zodiac Killer murdered at least five people, but claims to have killed at least 30. Find out why the case remains unsolved Jessica Sager is a contributing writer at PEOPLE. She has been ...