Also I have to mention one thing about the Murderer Quest. Later in the quest you can't, but when killing Ambroz Bricenos (the guy the quest really starts with) you can have no reputation hits, and even a good reputation hit. I did the quest (and the tip) very early in the game (in fact, i'm in the middle of the game!) so you can make it no matter which level are you.
For no reputation hits when killing Ambroz, simply don't tell him anything, just go to the beach, shoot the poor man and fight till he dies, and leave. No reputation hits!
For a reputation improvement, it's a little more tricky. Go to the beach, and push him (running or walking into him) right blocked by the palm trees. Better to save the game before, as it's hard to get this. You might want to get the man JUST the spot between you and the palm trees... Why? So you can tell him to keep his golden pieces and run! He won't even believe that is true <img src="http://www.piratesahoy.com/forum/style_emoticons/<#EMO_DIR#>/whistling.gif" style="vertical-align:middle" emoid="
" border="0" alt="whistling.gif" /> , so you must say it again (I've got the spanish game, so don't know the exact translation <img src="http://www.piratesahoy.com/forum/style_emoticons/<#EMO_DIR#>/wink.gif" style="vertical-align:middle" emoid="
" border="0" alt="wink.gif" />). Just after you tell him twice, he will thank you and start to run to the mountains, increasing your reputation, and then he'll disappear; let's say he will TRY to run to the mountains, cause as we got him trapped, he will run in the spot (for a very short time, then he will depop): time to show him your Pirate Sword and kill him, allowing to forward the quest. <img src="http://www.piratesahoy.com/forum/style_emoticons/<#EMO_DIR#>/danse1.gif" style="vertical-align:middle" emoid="
" border="0" alt="danse1.gif" />