Dead snake, caught in a snare, and exhibiting decay of >1 week (probably more). Snare was set for bushmeat species (e.g., duikers, porcupines), the snake is bycatch. I was told that a minority of people will eat snake, it is not a preferred species. Snare set-up visible in two of the photos.
Forest cobra? Mamba?
Dead on road
Droplet stains on the lens in Pic #1 are venom spat by the Cobra.
Pic #2 the moment of spit