enigmatic puzzle - Who stole the diamond?

_{Inspiration from @BeastlyGerbil's Puzzle - This is an opprtunity. Can you take it?}

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In Puzzlville last night, someone stole the famous Stone of Wondrous Mystery!

Can you help the police find it? But first... maybe you should read the news.

_{Note: I cannot confirm that all of the images came through clearly enough. If you find that there's something that you can't... read, then let me know, and I can supply the original image that you can't read... probably.}

Hint:

There's a reason that there's one dark green and one light green in each sudoku box. Also, I made a mistake - foe should be for.

Answer

Final Complete Answer:

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The original image QR gives:

Charles = Kyle

Clicking on the image and reading the QR there gives

vavqvny=qrnz (@Deusovi points out this is rot13 for initial=team)

Notably it's upside down

The barcode on the cereal says:

cereal

And the QR says:

irving=corey

The barcode on the side gives

E5vEw.png

a link to here

The QR there says:

casper is actually jon. jon skeet. heh heh heh. just kidding. but he's really jon.

The barcode there says:

bart=j.a.

there is also a hidden imgur address

'aayEK.png'

which leads to:

The solution to the sudoku is:

The light green tiles give:

418862151

The dark green tiles give:

131399235

The suspects as listed below give their stories:

Charles Kyle Hendricks (26) Chicago Cubs Pitcher - Last night, I was out late at the Sphinx's bar, drinking with my buddies. Then at 'round midnight, I staggered off home, you know, at 28 Enigma Road. You can check with my buddies if you want.

Wesley Roak Tanner Roark (34) Washington Nationals Pitcher - I was just too tired to go to the game, I was sleeping. I haven't been anywhere near that museum. It's full of boring strange things - why would I go there?

Casper Lester Jon Lester (29) Chicago Cubs Pitcher - I was out of town last night, visiting my pop in Yhpargonagets [Steganography backwards]. I didn't touch no diamond.

Irving Kluber Corey Kluber (31) Cleveland Indians Pitcher - could not be found

Bartholomew J. Happ James Anthony Happ (37) Toronto Blue Jays Pitcher - could not be found

@Mithrandir has said Dark green then Light green so

131399235418862151

there is also another imgur link

leading to:

That has a link

to

The bear from sesame street

From this @Scimonster correctly deduced

That the baseball pitch and a baby bear indicates the CUBS

So the culprit is either Kyle Hendricks or Jon Lester

It has been repeatedly said Dark the Light so:

You will notice that each cell in the Sudoku has 1 dark green and 1 light green. The dark green number indicates the line number in the newspaper, the light green represents the letter. I'll edit in each line in a second. (Thanks @Scimonster)

Using this we get

1. Dark = 1 Light = 4 - Last night, under cover of
2. Dark = 1 Light = 8 - Last night, under cover of
3. Dark = 3 Light = 1 - broke into the Museum - Mistake
4. Dark = 9 Light = 6 - Mystery. Upon arriving
5. Dark = 3 Light = 8 - broke into the Museum
6. Dark = 9 Light = 2 - Mystery. Upon arriving
7. Dark = 5 Light = 1 - founded by the Commitee
8. Dark = 2 Light = 1 - of darkness, someone
9. Dark = 3 Light = 5 - broke into the Museum - Mistake

thbrtyfoe

However @Mithrandir says in the hint that 'foe' should be 'four'. There also seems to be another error. It should actually be

Thirty Fo(u)r

Which is

Jon Lester's Shirt Number

So the thief is

Jon Skeet Jon Lester