I totally understand where you're coming from on this. We live in a great country that works to keep us free, and that is because we have a good Constitution, with emphasis in individual rights. We should want nothing less.
OTOH, there's the human side. I would like to think that there are MANY people who, IF they're innocent of a crime committed against their loved one, would honor the vows they took on their wedding day. Love, honor, cherish, till death do us part. With that in mind, should someone cut short the life of your beloved spouse, they would do everything humanly possible to catch the person(s) responsible.
I must be old fashioned. I raised 6 children and had the good fortune of being a SAHM the majority of the time. My family came before me. Of course, many don't feel that way, I realize. But it's just incomprehensible to me, that someone would have such low regard for their spouse, they'd rather let a killer go loose, just because they're afraid. Afraid of being accused when they're innocent.
Usually those that are TRULY innocent, don't fear being accused because they know they did nothing wrong. All they want is whoever harmed their loved one, to pay.
Course, that's JMHO
fran