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No, neither of these suspects came up on 4chan or reddit.

There seem to be no real hi-res images of these suspects, except for a photo which just showed up of suspect at site #1 [1]

[1] - http://imgur.com/a/34wtj

Gosh that'd be eerie if it turns out to be these guys knowing they walked right past you and your friends and to have a photograph of it.

The source material here looks to be CCTV cameras, which were probably not posted online.

No they didn't

They were pretty close. The 4chan suspect had a forward-facing white baseball cap. The FBI suspect has a rear-facing white baseball cap. These kinds of minor inaccuracies are fairly common in crowdsourced solutions.