text:  Also, a Kenyan serial killer charged with 42 murders is described as a vampire by the police chief on the case. And we go to a remote mountaintop rainforest in Mozambique, now a conservation area. One of the things you first notice, it can be a baking hot sunny day outside the forest. And as soon as you walk into the forest, the temperature then drops and it's much, much cooler. First, the main world news.