>> WE MEET A LOCAL EMERGING ARTIST, CELEBRATING HER DEBUT ALBUM RELEASE.

>>> NOW TO A TOP STORY.

A 24-YEAR-OLD TRAGIC POLICE OFFICER SHOT AND KILLED IS LAID TO REST ON THE SOUTH SIDE THIS EVENING.

OUR ANNA PRESTON DIED AFTER AN ATTEMPTED ROBBERY.

SHE WAS MEMORIALIZED AS BEING THE BEST OF WHAT THE CHICAGO POLICE DEPARTMENT HAD TO OFFER.

A PASSIONATE PUBLIC SERVANT, WHOSE BRIGHT FUTURE WAS ABRUPTLY TAKEN FROM HER.

>> Reporter: THE CASKET, CARRYING THE BODY OF CHICAGO POLICE OFFICER ARIANA PRESTON ARRIVED AROUND 10:30 THIS MORNING.

POLICE OFFICERS, DIGNITARIES, AND FAMILY MEMBERS REMEMBERED THE FALLEN 24-YEAR-OLD AS A RAY OF LIGHT.

THEY SPOKE LOVINGLY ABOUT A FIVE-FOOT TALL 100-POUND DYNAMO.

>> CONFIDENT, DETERMINED, BRAVE, SMART, OUTGOING, BEAUTIFUL, WITTY, LOYAL.

>> THE CURRENT AND FORMER MAYOR RECALLED PRESTON AS A ROLE MODEL, WHOSE LIFE IS AN EXAMPLE FOR ALL YOUNG WOMEN IN CHICAGO.

>> ARIANA PRESTON WAS EXACTLY THE SORT OF PERSON THAT WE WANT TO RECRUIT TO OUR POLICE DEPARTMENT.

PASSIONATE, ENERGETIC, BOLD AND QUIZ TIVE.

>> ARIANA KNEW THAT LAYING HER LIFE DOWN EVEN FOR THOSE WHO DO NOT ALWAYS VALUE LIFE.

THAT IS THE EXEMPLARY EXAMPLE OF RIGHTEOUSNESS.

>> Reporter: FOUR TEENAGERS ARE IN CUSTODY AFTER PRESTON WAS SHOT AND KILLED ON MATH.

SHE RECEIVED HER MASTER'S DEGREE.

AND.

>> ONE FINAL INTERVIEW LEFT TO DO BEFORE SHE WAS TO GO TO THE ACADEMY.

CHICAGO'S LOSS WOULD HAVE BEEN THE FBI'S GAIN.

>> FELLOW OFFICERS REMEMBERED HER AS A DEAR FRIEND, A COLLEAGUE WHO KNEW EXACTLY WHERE SHE WANTED TO END UP.

>> WE WOULD ALWAYS JOKE WITH HER AND SAY THAT SHE'S GOING TO BE THE FIRST FEMALE SUPERINTENDENT.

SHE WAS FIERCE.

SHE KNEW HER STUFF.

SHE WAS A FIRECRACKER.

SHE WAS WITTY.

EVEN THOUGH SHE WAS LITTLE, SHE WAS BIG.

>> BEFORE PROCEEDING TO HER INTERNMENT, A CUSTOMARY BAGPIPE SALUTE.

HUNDREDS OF OFFICERS AND FIRST RESPONDERS, PAYING ATTENTION TO A LIFE CUT SHORT, LIKE SO MANY BEFORE HER.

>> A BRIGHT LIGHT THAT WAS TAKEN AWAY MUCH TOO SOON.

BUT IN THAT, WE FIND SOME COMFORT.

BECAUSE NOW, HER NAME LIVES ON