I would usually get this by adding a gradient layer (red/yellow/blue or blue/orange or purple/red/blue) and tweaking it (usually setting the blending to overlay and playing with opacity) and finish it off with brightness/contrast layer.
For that first photo, you can achieve a look like that in Photoshop with one to two adjustment layers. The first one (if required) should be a Brightness/Contras adjustment to crush the blacks. The second one should be a Color Balance adjustment with values in the neighbourhood of the following:
Your results will, of course, vary depending on the source image, but if you play around with the Color Balance adjustment layer, you should be able to get the look you’re after eventually.
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Do you have any links to any tutorials?