ONE CLUE SOLVED! - CONTEST TWO: Solve this puzzle to win a free Fanatic book by Chris Williams

[Kagavi]

Is this the true identity of the zodiac killer?

That's my third and final contest, only for premium members.

C + Ω Z D ∆ @ W X R ∞ R Y Y ¡

but I'm sure you know the answer to that already*
*not a real clue

 

[Tony Gunk]

J Street in Washington D.C.

 

[iowastatefan1929]

They symbol means extinct.

 

[cyputz]

Atanasoff

 

[Kagavi]

Atanasoff

(Not related to ISU, see comment 97)

 

[jdcyclone19]

conjugate transpose

 

[JayV]

The rise of Christianity and the fall of the Roman Empire

??

 

[bsaltyman]

 

[iowastatefan1929]

The symbol means obsolete.

 

[Kagavi]

Thank you to all, no.

BONUS CLUE 3:

The false eighth moon went dark twice.

 

[Kagavi]

Remember I will be adding each additional clue to the original post, so people don't have to wade through pages of despair

ETA: the bonus clues are my attempt to give additional cryptic context to the original puzzle's sentences, not an attempt to expand the overall puzzle. The solution path should remain the same. (Altho the note about it not being related to ISU is not a cryptic phrase, just a fact.)

 

[Tailg8er]

Mark?

I'm starting to forget what all has been guessed by others at this point.

 

[F5cy]

Mark?

I'm starting to forget what all has been guessed by others at this point.

I think maybe it's a cross-reference mark

 

[iowastatefan1929]

I think maybe it's a cross-reference mark

Yes exactly, it has to be a mark.

 

[CyCrazy]

Thank you to all, no.

BONUS CLUE 3:

The false eighth moon went dark twice.

Pink Floyd?

 

[Cycsk]

Remember I will be adding each additional clue to the original post, so people don't have to wade through pages of despair

ETA: the bonus clues are my attempt to give additional cryptic context to the original puzzle's sentences, not an attempt to expand the overall puzzle. The solution path should remain the same. (Altho the note about it not being related to ISU is not a cryptic phrase, just a fact.)

Bolded is just about the only clue that I have "had a clue" about. You guys have brains that work better than mine!

 

[Kagavi]

Nope, but I'll say the context to last clue shared - it refers to an earlier section of PART ONE

 

[Marcelason78]

Knicks 107 Spurs 100.

 

[BoomerClone]

Something about Paul McCartney having actually died and was replaced with a lookalike

Or

Ancient Latin alphabet

That’s what AI gives me. lol.

 

[Cycsk]

Kagavi > AI