For all the arguments about what this guy should do whether he did it or not, I'll just say this solely from my noted extensive Dateline watching experience (for whatever that is worth, if anything) and the overall conglomerate results from those shows. If the husband cares about doing the right thing and winning the public perception battle, he is likely better off talking to the police. However, if we are solely talking about increasing your chances of not being convicted of murder, the husband is better off not saying a word. If I've learned anything from Dateline, it is that it is very hard to convict someone of murder, especially when the person isn't talking and saying stupid stuff that is then used against them. All said and done, it is NOT the responsibility of anyone to prove they are innocent of a crime, but rather the State's burden to PROVE beyond a reasonable doubt that the person is guilty. This isn't the guilty or innocent trial, but rather the guilty or not guilty trial. Big difference. I've also found most the people who do get convicted are WAY more hurt by anything they say in an interrogation than helped, especially without a lawyer present.