They solved the Zodiac Killer's ciper.

Specifically the 340 cipher, not the already-solved 408 cipher

...the Zodiac Killer didn't know how to spell 'paradise', I guess

I wonder if that caused trouble during deciphering this

*while they were deciphering this

yeah, iirc a lot of the trouble with the first cipher was that he was a shitty speller

Comparisons of Z408 solutions

"we can't solve this because he can't fucking spell" is at least funny