Science is useful for certain purposes. Is it useful for all human purposes? Maybe religion has its social uses. Maybe we could do with a worthy late-modern religion. Or should we settle for the depression, anxiety, and malaise that drive our democracies into populist flirtations with fascism?
Science "addresses" questions of value in that it presents us with relevant information, but scientific methods don't settle questions of what should be done. There's no scientific experiment that proves the superiority of any goal or ideal.
You raise the law against murder. I just so happen to have written recently on whether we can still justify our revulsion towards murder without presupposing dubious religious notions. You might notice in my dialogue there with the devil's advocate that we can hardly appeal to any scientific fact to justify our talk of human rights. To do so would likely commit the naturalistic fallacy.
