Good morning!
RE: Image Manipulation - Couple of points.
Image manipulation/editing/enhancing is great when you keep a copy of the original. The problem, when it comes to the surveillance photos, is that the quality is so poor of the original image you could literally draw gloves, shoes, stripes, baseball bats (ok, just use your imagination here) to the image without being able to tell it was doctored. Once you place an image in a capable editor, the sky is the limit. Image error level analysis software can check for this, but on low quality images it can be tough.
There would be no way for us to know if the image was enhanced (lighting/exposure/contrast) or if elements were added/deleted from original photo.
Another note.. I have 15+ years exp working with photo editing software. I have never seen a case where I could make a dark item (the shirt in the hotel video) appear so completely different in desk photo and the hallway photo without losing other bright areas in photo.
For instance, look at bottle cap and skin tone in desk photo. Compare this to newspaper and skin tone in hallway photo. These items are not vastly dissimilar. Now compare the shirt color. It requires an advanced level of image editing to produce these results (destructive type editing).
Again, you could say that this was done to highlight details of shirt. If this is the case, we should be shown original to compare.