Remove murder and everything pvp related to murder as it is right now.
Add a system like this:
A criminal is someone who is an outlaw.
By default no one can be killed by another player (Not even by wound system).
If a criminal is agro'd the person who agros them does not become a criminal themselves or leave a scent.
If a dead body was a criminal then the items on the body can be stolen and trespassed upon without leaving scents or making the "looter" a criminal.
Ways to lose this privilege:
Anyone who is an outlaw. This will allow criminals to have justice claimed upon them. However, another thing needs to be changed in the game for this entire idea to work: If you attack a criminal you do not become one yourself. You do not leave a scent or become red-handed if the person you agro/lootbody was a criminal. Why punish people for defending them or someone else?
It should also be added that if someone does knock out someone with higher (or maybe even close to) UA/MC/AGI the person knocked out is now killable. This allows people to kill people who can defend themselves.
Anyone on a claim they do not own or have permissions. But only killable by people who have perms on the claim.
And finally, if someone does kill someone else they get an instant amount of that player's LP.
All of these changes would make pvp more interesting and enjoyable for people in the game. There would be incentive to go and find people who are as strong as you or stronger and kill them for a gain of LP and their gear. There would be incentive for people to track scents and hunt them down and get justice without having a target placed upon them. Noobs would only be afraid of losing their items and not their character if they did not commit crimes.