AND WE SHOW THIS TO THE FAMILY VIOLENCE, TO THE VICTIMS. >> MOLA LENGHI, THANK YOU FOR THAT. AND ABC NEWS CONTRIBUTOR, FORMER FBI AGENT BRAD GARRETT JOINS ME LIVE NOW FOR MORE ON THIS. BRAD, THE PEOPLE IN THIS NEW BODY CAM VIDEO, THEY'VE BEEN CLEARED. POLICE SAY THE INCIDENT WAS NOT RELATED TO THE MURDERS. SO HOW DOES THIS NEW BODY CAM FOOTAGE MAKE A DIFFERENCE? IN THIS MURDER INVESTIGATION? WELL, IT MAY MAKE NO DIFFERENCE. IT JUST REALLY DEPENDS. NOW, THE IDEA THAT COLLEGE AGE KIDS AT WEE HOURS IN THE MORNING WERE STOPPED FOR ALCOHOL OFFENSES. >> OBVIOUSLY, IT OCCURS EVERY NIGHT. SO WE'LL HAVE TO SEE HOW THAT PLAYS OUT. THE MORE INTRIGUING ASPECT OF THESE NEW LEADS, DIANE, IS THIS. THIS VEHICLE, BECAUSE AS YOU MENTIONED, EARLIER, I MENTIONED EARLIER THAT WE JUST DON'T KNOW THE CONTEXT. AND IS THIS A VEHICLE WHERE SOMEONE SAW AN INDIVIDUAL IN THE SHADOWS WALK FROM THE HOUSE TO THAT VEHICLE AND LEAVE IT? HAS IT BEEN PARKED THERE FOR SEVERAL DAYS? DOES THAT PERSON POTENTIALLY WHO OWNS THAT CAR? A WITNESS? WE JUST DON'T KNOW. BUT OBVIOUSLY, THE LAW ENFORCEMENT IS CONCERNED ENOUGH. THEY NEED TO IDENTIFY, FIRST OF ALL, THAT VEHICLE AND OBVIOUSLY THE OWNER OR MORE IMPORTANTLY, THE OCCUPY OF THAT VEHICLE ON THE WEE MORNING HOURS, NOVEMBER 13TH. >> DETECTIVES ARE NOW ASKING THE PUBLIC FOR HELP IN LOCATING THIS CAR WITH AN UNKNOWN LICENSE PLATE THEY SAY WAS SEEN IN THE IMMEDIATE AREA OF THE HOME WHEN THE VICTIMS WERE KILLED EARLY ON NOVEMBER 13TH. WHAT DO YOU THINK THIS ALL MEANS? COULD THIS BE A KEY PIECE OF EVIDENCE OR DOES THIS SOUND LIKE INVESTIGATORS ARE STILL KIND OF JUST LOOKING IN ANY DIRECTION POSSIBLE? >> OR IT COULD GO EITHER DIRECTION? WE DON'T KNOW IN WHAT CONTEXT THEY'RE LOOKING AT THIS VEHICLE. YOU KNOW, DO THEY HAVE INFORMATION OF SOMEONE GOING FROM THE HOUSE TO THIS VEHICLE? WAS IT PARKED? THERE WAS SOMEBODY SEEN IN THE VEHICLE. SO IT COULD BE A WITNESS. IT COULD BE A SUSPECT, OR IT JUST COULD BE A CAR THAT THEY HAVEN'T ELIMINATED. ONE OF THE THINGS YOU DO AS YOU PULL UP ALL THE CCTV AND TALK TO ALL THE WITNESSES ABOUT WHAT CARS WERE PARKED WHERE AND YOU START TO ELIMINATE THEM, THIS