>>> A MAJOR GANG BUST. THE NYPD ARRESTED 14 ALLEGED GANG MEMBERS. >> THEY ARE BELIEVED TO BE RESPONSIBLE FOR AT LEAST 20 SHOOTINGS. CBS2'S ALI BAUMAN RODE ALONG ON THIS TAKEDOWN. >> Reporter: WE WERE THERE WHEN POLICE ARRESTED FIVE ALLEGED GANG MEMBERS, ALL BETWEEN 15 AND 21 YEARS OLD. THIS IS A 13-MAN INDICTMENT CHARGE AGO YEAR'S LONG CONSPIRACY. AS A RESULT OF THIS TAKEDOWN POLICE WERE ABLE TO TAKE 17 GUNS OFF THE STREETS. IT'S 5:00 A.M. IN HARLEM, AND THE NYPD'S VIOLENT CRIME SQUAD IS STRAPPING ON THEIR BULLETPROOF VESTS, GEARING UP FOR A GANG TAKEDOWN. >> YOU ARE GOING TO GO BEHIND THAT DOOR, AND SOMETIMES YOU DON'T KNOW WHAT'S BEHIND THAT DOOR. >> Reporter: DEPUTY CHIEF BRIAN McGEE PREPARES THE DOZENS OF OFFICERS HEADING OUT TO ARREST FIVE SUSPECTED MEMBERS OF THE CHICO GANG. NINE OTHERS IN THE INDICTMENT ARE LIRND CUSTODY. >> THEY'RE A VIOLENT GANG. THEIR MAIN MOTIVE IS TO BENEFIT THE GANG BY VIOLENCE. >> Reporter: WE RIDE ALONG TO THE WAGNER HOUSES WHERE THEY GO INTO ONE APARTMENT BUILDING WITH SHIELDS AND RAMS. AS SOME DETECTIVES KEEP LOOKOUT AT THE EXITS, THE SQUAD STEPS INTO THE DARK STAIRWELL. >> Reporter: IN THE WAGNER HOUSES BEHIND ME THIS IS ONE OF TWO WARRANTS CONDUCTED IN HARLEM THIS MORNING. MINUTES LATER, 20-YEAR-OLD MITCHELL AND HIS BROTHER ARE WALKED OUT IN HANDCUFFS. >> THEY KNOCKED. WE WAITED 25 SECONDS AND YOU SOMEONE CAME AND OPENED THE DOOR. WE ANNOUNCED OUR PRESENCE AND WHY WE WERE THERE. >> Reporter: THE SUSPECT'S PARENTS AND YOUNGER SIBLINGS WERE ALSO HOME. >> Reporter: WHAT WERE THEY DOING DURING ALL THIS? >> THEY WERE SLEEPING. >> Reporter: THE ARRESTS WRAPPED UP AS FAMILIES START THEIR DAY. INVESTIGATORS SAY THESE WARRANTS ARE PRECISION POLICING IN ACTION. >> THERE ARE SO MANY GOOD PEOPLE IN THE WAGNER HOUSES. IT'S THE SMALL AMOUNT OF PEOPLE DOING THE CRIME. >> Reporter: POLICE ALSO BRING IN 20-YEAR-OLD MELVIN WILLIAMS ARRESTED AT THE SECOND LOCATION. >> I'M INNOCENT. >> Reporter: THIS CASE LINKS 21 SHOOTINGS BACK TO THE CHICO GANG, MOST TARGETING RIVAL GANGS HARLEM. ACCORDING TO THE INDICTMENT 12 PEOPLE WERE SHOT INCLUDING FOUR INNOCENT BYSTANDERS. >> A MAJOR GANG TAKEDOWN IN MANHATTAN NORTH, MONTHS AND MONTHS OF PATIENT, CAREFUL WORK WENT INTO TAKING A NUMBER OF CRIMINALS OFF THE STREETS. >> Reporter: INVESTIGATORS BEGAN BUILDING THIS CASE JANUARY OF 2020. >> THEY SIT AND THEY COMB THROUGH A LOT OF SOCIAL MEDIA SO WHEN PEOPLE GET ARRESTED, WE TAKE THEIR CELL PHONE, WE DO SEARCH WARRANTS ON THEIR CELL PHONES. WE'RE ABLE TO SEE WHAT'S GOING ON BETWEEN THE PHONE CONNECTIVITY. >> Reporter: RECOVERED FROM THE APARTMENT, A FIREARM, TWO 30- ROUND CAPACITY MAGAZINES, BAG OF SYNTHETIC MARIJUANA AND A BAG OF HEROIN. BUT UNFORTUNATELY THIS IS NOT THE CHICO GANG'S FIRST TAKEDOWN. >> THEY ACTUALLY DID A CASE TAKEDOWN OF THIS GANG PROBABLY THREE YEARS AGO, AROUND IT'S GOING TO CONTINUE. >> Reporter: HOW DO YOU PREVENT THE OTHERS TO FILL THAT VOID? >> THE ANSWER, I DON'T KNOW. I WOULD THINK IF A KID HAD AN OUTLET TO GO GET A JOB AND HAD A GOOD EDUCATION AND A GOOD FAMILY STRUCTURE, I THINK THAT WITH HELP A LOT. IT'S A UNFORTUNATE. DO I THINK THIS IS GOING TO END A 13-YEAR-OLD FROM BECOMING A GANG MEMBER? I CAN'T SAY THAT AND I DON'T THINK THAT H HAPPEN. DO I THINK THIS, AND WITH THE HELP OF EVERYONE HERE IN THIS ROOM, DO I THINK IT WILL HELP? YEAH, I THINK THERE MAY BE SEVERAL OF THE KIDS FROM THE WAGNER HOUSES, THERE'S NO WAY I WANT PART OF. >> ALL THE DEFENDANTS ARE CHARGED WITH CONSPIRACY AND ADDITIONAL CHARGES INCLUDE ATTEMPTED MURDER, ASSAULT,
