Bus Bomb Page 4

Below is a transcription of a letter written by the Zodiac killer. Grammatical and spelling errors are included as written.

Date: November 9, 1969

Comments:

Take one bag of ammonium nitrate fertilizer + 1 gal of stove oil & dump a few bags of gravel on top + then set the shit off + will positivily ventalate any thing that should be in the way of the blast.

The death machine is all ready made. I would have sent you pictures but you would be nasty enough to trace them back to developer + then to me, so I shall describe my masterpiece to you. The nice part of it is all the parts can be bought on the open market with no questions asked.

1 bat. Pow clock -- will run for aprox 1 year
1 photoelectric switch
2 copper leaf springs
2 6V car bat
1 flash light bulb + reflector
1 mirror
2 18" cardboard tubes black with shoe polish inside + oute