Last time I checked, you'll get money or experience for killing players and staying alive.
PS: People should work together and hunt him down. In a group it is easy- the other player will always be somewhere your level, so absolutely possible to kill. Had a similar experience once, because when it comes to extracting the stuff, players suddenly turn blind and don't check their surroundings anymore. Kinda funny to watch, imo and totally screams for someone to get them. :>