Described as being postmarked twice from Los Angeles, with March 7th 1986 and March 12th 1986, this envelope bore the hand printed address of "(Redacted) Ambler Tours 101 2ND AVE. Suite 1900 SAN DieGo, CA. 92101". Accompanying was a hand printed letter beginning "Hi ......., We Are...". If written in this fashion, using upper and lower case lettering inappropriately, then it bore similarities to the second McDonald's Letter mailed on February 8th 1988, also sent to a business residence (and also incorrectly written). The two McDonald's letters purportedly claimed to be from the Zodiac Killer, whereas nothing in the FBI file below carries his pseudonym, other than an "O" sign and "ZODiAC KiLLER" written above Q1. Whether this was sampled writing and part of the communication itself, or added as a notation by investigators, I cannot say for sure. But again, it is a blend of upper and lower casing. If you take a look at Q2 in the McDonald's Letter here, it too has a circle (belatedly added on the FBI file) between "the" and "Zodiac", suggesting it may have formed part of the original message. But is this enough to suggest a connection between the two sets of communications, separated by approximately two years.
Ambler Travel: 1010 2nd Ave , San-Diego-CA 92101 (now closed).
Ambler Tours & Travel Service Inc is a privately held company in San Diego, CA and is a single location business. Categorized under Tourist Agency Arranging Transport, Lodging and Car Rental. Our records show it was established in 1953 and incorporated in California. Current estimates show this company has an annual revenue of 740,000 and employs a staff of approximately four.