When u turn around RED not purple , u are in murder status, to go back to normal (white) follow this steps.
1. Go to the city (Jangan, Downhang or Hotan) and put the garment/protector/armor and weapons u are wearing on the storage or the inventory.
2. One u are "naked" go out and let people kill u, u will see ur "murder points" will decrease every kill, depends on how much damage u did. When I killed some guy a few days ago I had to die like 4 times and lost 10% exp and like 150 SP

.
Step number 1 is
extremely important cause when u get killed there is a high probability that ur cloth or weapon fall.
Good luck
