 The Cold Case Unit is responsible for investigating unsolved homicides that occurred in Denver. There are approximately 700 to 1,000 unsolved homicides dating back to the 60s, 70s. Those cases are investigated based on tips, case reviews. We get lots of phone calls and that kind of generates some of our investigative efforts. Lab results, changing science. The crime lab can now do things with evidence. They certainly couldn't do 40 years ago and maybe not even 15 years ago or 10 years ago. In general, cold cases are defined as a case that's unsolved for a year or longer. The cool thing about cold cases, sometimes a fresh set of eyes can see something that has been there all along or see something in a different light and gives us another angle to potentially investigate that case. We know that in a large majority of these cases people know stuff. They know things they have not told us. They know things that can potentially bring these cases to resolution. That's the key. If people will give us that information then we can resolve some of these cases. There are victims in our community who suffered these losses that can never be fixed. These are people's lives and to me it doesn't matter if they were murdered in 1970 or murdered in 2010, they've been taken by an act of violence by a criminal act and somebody should be held accountable. At the very least the family has a right to know what happened to their loved one and just because 40 years has passed doesn't mean that that person wasn't a mother or wasn't a father or wasn't a brother or a sister. And when you take somebody out of somebody's life by an act of violence that resonates and it never goes away and I think it still matters. You know, it doesn't stop mattering just because 30 years has passed. The families and survivors that are left when somebody dies due to a violent act or a crime I can only imagine how difficult it is when those cases remain unsolved. And so I think it's important for our community and for the families that are left behind that they know that the cold case unit in the Denver Police Department exists and that they know we work on these cases all the time. The Denver Police Department will never forget what happened to your loved one and will continually make efforts to try to bring some resolution to that case.