A mom and her child were killed in their Nebraska home 45 years ago. DNA helped authorities make an arrest in the cold case

More than four decades after a young mother and her son were found dead in their Nebraska home, a forensic breakthrough has led to the arrest of a man long suspected in the case, according to Omaha authorities.

​ More than four decades after a young mother and her son were found dead in their Nebraska home, a forensic breakthrough has led to the arrest of a man long suspected in the case, according to Omaha authorities. Read More Breaking News, Latest News and Videos | CNN