[tim333]

Do not murder is not a good moral absolute as it basically means do not kill people in a way that's against the law, and people disagree on that. If the Israelis for example shoot Palestinians one side will typically call it murder, the other defence.

[pc86]

This isn't arguing about whether or not murder is wrong, it's arguing about whether or not a particular act constitutes murder. Two people who vehemently agree murder is wrong, and who both view it as an inviolable moral absolute, could disagree on whether something is murder or not.

How many people without some form of psychopathy would genuinely disagree with the statement "murder is wrong?"

[tim333]

Not many but the trouble is murder kind of means killing people in a way which is wrong so saying "murder is wrong" doesn't have much information content. It's almost like saying "wrong things are wrong".