The Projector Theory Meets Lake Berryessa

There is a belief that the Zodiac Killer couldn’t have used a projector to alter his handwriting because a projector wasn’t used to write on the door of Bryan Hartnell’s car. Here is an algorithm for indirectly pulling that off.

• Project letters onto heavy paper

• Trace the letters with a pen

• Cut out the letters with an X-Acto knife

• Apply the heavy paper on th…