Should I Keep Pushing or Leave the Police to Do Their Jobs?

The husband and wife of a man who was killed have no proof that he did it. They contacted the sheriff's office but were told someone may reach out to them in the future. It has been almost a year since they last heard from law enforcement. The husband doesn't want to be a nuisance or cause trouble for his grieving partner. What do you think? Share your thoughts with us at CNN iReport.