Drow

The Drow are only distant relatives to the elves, despite their similar features. Despite their abundance on the Material Plane, the drow are native to Shadowfell. A lack of emotion, common to inhabitants of Shadowfell, is often mistaken in the elves as an evil nature. Killing off the sick and old, an atrocity by mosts' standards, is seen by the drow only as culling the population to keep it strong and fit, a perfectly natural way of maintaining the health of a society.