The name Zodiac Killer refers to the still-unidentified serial killer responsible for the deaths of anywhere between five and 37 people in northern California during the late 1960s and early 1970s. The nickname comes from a series of threatening letters sent to local newspapers during this time period. To this day, the identity of the Zodiac Killer has not been confirmed, and the case remains open in several cities. This election cycle, a rumor has been circulating around the Internet that presidential candidate Sen. Ted Cruz (R-Texas) and the unnamed Zodiac Killer are in fact the same person. The meme was spawned on Twitter and has since generated an incredible amount of traffic on its Facebook page and other forms of social media.