You can kill that person or any other. If you have any questions regarding Bounty Hunter, you can locate it on the Runescape website. Also, the Clan Wars Arena was also created, which effectively wiped out the clans that were dishonorable and crashing planned wars.
Summoning was the second skill that was discovered. This skill lets you summon creatures to assist you in battle or improve your skills. You should read the KB on the official Runescape website for more information, as it's a very vast and wide skill.
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