Published: May 10, 2011 6:01 PM EDT
Updated: May 10, 2011 2:26 PM EDT

CAPE CORAL, Fla.-- Tuesday marks the the 21st Anniversary of the brutal murders of 11 year old Robin Cornell and 32 year old Lisa Story. The two were killed in their apartment in Cape Coral in the early morning hours of May 10, 1990.
 
Jan Cornell, Robin's mother, was at her boyfriend’s house on the night of May 9, 1990 watching television when she fell asleep. She woke up and went home to discover that her daughter and roommate had been brutally sexually assaulted and killed inside of the apartment.

Cape Coral Police Detectives have been investigating the case. In the 21 years that have followed, many detectives have worked on the murders. Lt. Tony Sizemore says by definition the case is cold, but it is not inactive. 

Police collected DNA from the crime scene and have developed a “DNA Profile” of the suspect. This has been the biggest development to date. Hundreds of individuals have been interviewed and had their DNA compared to the profile. Unfortunately, to date there has been no match.

The Cornell/Story case has been profiled on America’s Most Wanted three times. All three airings produced tips and information for the investigators.
 
Detective Christy Jo Ellis has been working the Cornell/Story case for the last several years. Detective Ellis is a 20 veteran of CCPD and has been a Major Crimes Detective for nearly a decade. She along with Detective Kurt Grau, himself a 21 year veteran of the force and seasoned detective pour over evidence and new leads often. In fact, a viable tip came in just last Thursday. An informant provided information to another law enforcement agency in Florida who gave the information to Detectives Ellis and Grau. They are actively pursuing the lead.
 
“The fact that we still receive information proves that this case is very much alive.” said Detective Ellis. Ellis went on to say, “The DNA Profile is a vital piece of evidence. It’s as if we have a key to the car, we just need to figure out who the car belongs to.”
 
Detectives maintain a close relationship with Jan Cornell. Ellis and Cornell speak routinely about the case. “It is a tremendous advantage having Jan available on speed dial. She is an active participant in this investigation. She is able to recall people from that time and help put pieces of evidence into context”, said Ellis regarding her relationship with Jan Cornell.
 
“Every day I pray for justice for Robin and Lisa. I know that someone out there knows what happened. Please come forward with any information you may have about this case. I made a promise over twenty years ago that I would never stop looking” said Jan Cornell.
 
Lieutenant Tony Sizemore recently sat down with Detective Christy Jo Ellis and interviewed her about the Cornell/Story case. Ellis spoke about the upcoming anniversary, her relationship with Jan Cornell, the details of the case itself as well as some of the evidence. The interview is roughly 15 minutes in length. You can view parts one and two by clicking on the below links.
 
Part 1: http://www.youtube.com/watch?v=JK_Sq_RSb6I
Part 2: http://www.youtube.com/watch?v=dRSBuZoEBow