>> DETENTION HEARING IS NOW UNDER WAY WITH 22 YEAR-OLD XAVIER TATE FACING A JUDGE IN THE MURDER OF OFFICER LUIS WESCO. WE'VE WATCHED AS OFFICERS ARE POURING INTO THE COURTROOM TO SUPPORT THE FAMILY OF OFFICER WEST IN THEIR FALLEN BROTHER IN BLUE. IT TATE WAS TAKEN INTO CUSTODY WEDNESDAY NIGHT, ACCORDING TO POLICE, THE HANDCUFFS USED ON HIM ALONG TO THE OFFICER. HE'S ACCUSED OF MURDERING. HE'S CHARGED WITH FIRST-DEGREE MURDER, AGGRAVATED VEHICULAR HIJACKING AND POSSESSION OF A STOLEN FIREARM. TATE WAS ARRESTED BY MEMBERS OF THE U.S. MARSHALS, GREAT LAKES, REGIONAL FUGITIVE TASK FORCE AT AN APARTMENT COMPLEX IN GLENDALE HEIGHTS AFTER POLICE SAY THEY HAD INFORMATION HE MAY HAVE TRAVELED TO WISCONSIN AND IOWA. THE DUPAGE COUNTY STATE'S ATTORNEY HAS ALSO NOW CHARGE A PERSON WITH CONCEALING AN AIDING A FUGITIVE. POLICE SAY THEY WERE ABLE TO QUICKLY IDENTIFY THE SUSPECT AND TRACK HIS MOVEMENTS TO HOURS BEFORE THE CRIME. THIS MORNING, POLICE CONFIRMED THAT DNA AND OTHER EVIDENCE LINKING TATE TO THE CRIME. >> GAYNOR HALL: WAS RECOVERED IN PROCESS BY DETECTIVES AND THE CRIME. GUN INTELLIGENCE CENTER. POLICE SAY OFFICER WEST DID NOT SHOOT HIS WEAPON DURING THE ENCOUNTER AND THAT BALLISTICS REVEAL ONLY ONE PERSON FIRED SHOTS. OFFICER WEST COAST SERVICE WEAPON WAS STOLEN AND LATER RECOVERED INVESTIGATORS CLAIM THE EVIDENCE AGAINST HATE DOESN'T LIE. >> JAY, IN A MATTER OF SECONDS, THE LIFE OF SOMEONE WAS TRYING TO OUR CITY BETTER AND SAFER. KINDNESS AND COMPASSION. >> I SPOKE WITH FAMILY OF OFFICER WEST LAST NIGHT WHO WANTED TO SHARE THEIR GRATITUDE FOR THE SUPPORT THEY'VE RECEIVED AS WELL AS THEIR HOPE FOR JUSTICE. THEY RELEASED A STATEMENT THAT READS IN PART, QUOTE, THE VIOLENT NATURE OF THIS CRIME AND ITS DEVASTATING IMPACT ON OUR FAMILY AND THE COMMUNITY AND UNCOMPROMISING PURSUIT OF JUSTICE. THE STATEMENT WENT ON TO SAY WHILE NO MEASURE OF JUSTICE CAN BRING OFFICER WEST QUEBEC, FULLY HEAL OUR HEARTS, WE TAKE SOLACE IN HIS ENDURING LEGACY OF SERVICE AND BRAVERY. >> GAYNOR HALL: AT THIS TIME, INVESTIGATORS DON'T BELIEVE THIS WAS A TARGETED ATTACK. THEY BELIEVE THAT TATE ENCOUNTER OFFICER WEST AS HE WAS ARRIVING HOME FROM A SHIFT IN THE EARLY MORNING HOURS OF APRIL. 21ST BRING YOU MORE AS THIS HEARING WRAPS