SURVIVE. WE KNOW ONE PERSON IS IN CUSTODY BUT POLICE HAVE NOT ELABORATED ON THE CIRCUMSTANCES. WE ARE THERE ON THE COUCH GROUND GATHERING MORE INFORMATION. >> A LOOK AT KEY EVIDENCE, THE JURY IN KAREN READ'S MURDER TRIAL SEES FOR THEMSELVES THE SUV THAT READ WAS DRIVING THE NIGHT THAT HER BOYFRIEND, OFFICER JOHN O'KEEFE WAS KILLED. JURORS ALSO VISITED THE CRIME SCENE. >> ON THE WITNESS STAND, FIRST RESPONDERS LAID OUT WHAT THEY SAW THE MORNING THAT JOHN O'KEEFE DIED AND HOW KAREN READ REACTED. CHRISTINA HAGER IS LIVE FOR US. A VERY BUSY DAY TO WRAP UP THIS FIRST WEEK. >> Reporter: YES, AND A LATE DAY. KAREN READ AND HER ATTORNEYS ARE STILL IN THIS COURTHOUSE WORKING ON SOME LAST-MINUTE PAPERWORK. THIS AFTERNOON, THE TESTIMONY TURNED TO HER DEMEANOR AT THE SCENE AFTER HER BOYFRIEND WAS DISCOVERED UNCONSCIOUS. IT IS A SCENE JURORS GOT TO SEE IN PERSON TODAY. KAREN READ'S SUV, THIS IS WHAT JURORS IN HER MURDER TRIAL GOT A CLOSE-UP LOOK AT, ALONG WITH THE DRIVEWAY AND HOME IN CANTON, WHERE READ ALLEGEDLY BACKED IT INTO BOSTON POLICE OFFICER JOHN O'KEEFE AND LEFT HIM THERE ON A COLD JANUARY NIGHT. >> I AM GOING TO ASK YOU TO TAKE NOTE OF THE CENTER CONSOLE IN FRONT OF THE DRIVERS COMPARTMENT OF THE VEHICLE. >> Reporter: PART OF THE INTERIOR REMOVED. IN THE BACK, A BROKEN LIGHT. READ HERSELF SEEMED UPBEAT ABOUT THE FIELD TRIP. >> THEY WILL GET A VERY GOOD PERSPECTIVE. >> Reporter: THIS WAS AFTER A TENSE MORNING BETWEEN HER ATTORNEYS AND CANTON FIREFIGHTER, KATIE McGLOCKLIN. THIS PHOTO, SHOWING THE TWO TOGETHER AT THE SCENE THE MORNING AFTER IT HAPPENED. McGLOCKLIN HAS TESTIFIED READ ESSENTIALLY CONFESSED. >> SHE SAID, " I HIT HIM." SHE REPEATED IT. >> Reporter: READ'S ATTORNEY'S CALL" -- CALLING McGLOCKLIN'S CREDIBILITY INTO QUESTION, OWNING THIS HOME WHERE O'KEEFE'S BODY WAS FOUND. SHE THUMBED THROUGH PICTURES OF THE TWO TOGETHER, WHICH READ'S ATTORNEYS PRINTED FROM SOCIAL MEDIA, PICTURES THE JUDGE RULED THE JURY CANNOT SEE. >> I WOULD SEE THAT WE HAVE MUTUAL FRIENDS, SO WE MIGHT SEE EACH OTHER OCCASIONALLY BECAUSE OF MUTUAL FRIENDS. BUT, WE DON'T HAVE A ONE ON ONE FRIENDSHIP. >> Reporter: OTHER TESTIMONY FOCUSING ON READ'S DEMEANOR AT THE SCENE. SO FRANTIC, PARAMEDICS THOUGHT SHE NEEDED PSYCHIATRIC HELP . >> BECAUSE SHE MADE THREATS AGAINST HER LIFE. HER EMOTIONAL STATE WAS ALL OVER THE PLACE. >> Reporter: SO, THE LATE AFTERNOON TESTIMONY REALLY FOCUSED ON READ'S STATE OF MIND IN THOSE MOMENTS WHEN FIRST RESPONDERS FIRST MET HER, AND SOME SURPRISING THINGS THEY SAY SHE SAID TO THEM.
