TO A DEVELOPING TRAGEDY IN ROCKLAND COUNTY. INVESTIGATORS BELIEVE A POLICE SERGEANT SHOT AND KILLED HIS WIFE AND TWO CHILDREN BEFORE TURNING THE GUN ON HIMSELF. THE BIG QUESTION TONIGHT. WHY? EYEWITNESS NEWS REPORTER ANTHONY CARLO IS IN NEW CITY. ANTHONY JOE, YOU SEE THAT BASKETBALL HOOP THERE BEHIND ME? >> NEIGHBORS SAY IT WAS RECENTLY AS JUST A COUPLE OF DAYS AGO THAT THEY SAW THOSE TWO LITTLE CHILDREN PLAYING THERE, YOU KNOW, I SPOKE TO A MAN WHO IDENTIFIED HIMSELF AS SERGEANT MORGAN'S FATHER OFF CAMERA. HE'S TRYING TO UNDERSTAND HOW ALL OF THIS COULD HAPPEN. HE SAYS THAT HIS SON RECENTLY TOOK HIS WIFE AND TWO KIDS TO SEE HER RELATIVES IN MASSACHUSETTS FOR THE HOLIDAY. HE TELLS ME THAT SERGEANT MORGAN LOVED TO TRAVEL WITH HIS FAMILY, TAKING HIS WIFE AND CHILDREN TO MORE THAN 50 COUNTRIES. NEIGHBORS HERE DESCRIBE SERGEANT MORGAN AS A GOOD FATHER, MAKING IT ALL THE MORE DIFFICULT TO UNDERSTAND HOW, FOR LIVES COULD END IN THIS FASHION, IN THIS QUIET CUL DE SAC, OVERCOME BY TRAGEDY FROM THE OUTSIDE, THE WREATH ON THE DOOR, THE HOOP AND THE DRIVEWAY IT ALL LOOKED NORMAL. BUT INSIDE THIS HOME ON CLYDESDALE COURT, POLICE FOUND A FAMILY OF FOUR DEAD, INCLUDING TWO CHILDREN. THE NEXT DOOR NEIGHBOR, JUSTRILLIONECENTLY, SAW THEM THERE, WERE PLAYING NORMALLY, JUST NORMALLY. >> WE JUST. I'M SORRY. THAT'S. WE'RE JUST VERY SURPRISED. YEAH. AND IT'S REALLY HORRIFIC OF WHAT HAPPENED. >> CLARKSTOWN POLICE BELIEVE 49 YEAR-OLD WATSON MORGAN A SERGEANT IN THE BRONXVILLE POLICE DEPARTMENT, SHOT AND KILLED HIS WIFE, IDENTIFIED BY POLICE AS 43 YEAR-OLD ORNELLA MORGAN, A BRONX TEACHER AND THEIR TWO SONS, AGES TEN AND 12, BEFORE TURNING THE GUN ON HIMSELF, A TRAGEDY NEIGHBORS ARE HAVING DIFFICULTY COMING TO TERMS WITH. >> HE'S A VERY LOVING FATHER. THAT'S ALL I CAN SAY. VERY LOVING, VERY CARING FAMILY. I MEAN, HE'S A VERY CARING PERSON. >> THE CLARKSTOWN SCHOOL DISTRICT RELEASING THE FOLLOWING STATEMENT IN PART. THE NEW YEAR WILL UNDOUBTEDLY START WITH GREAT SADNESS AND HEAVY HEARTS IN OUR CLOSE KNIT SCHOOL DISTRICT. THE COMING DAYS AND WEEKS WILL BE A DIFFICULT TIME FOR OUR SCHOOL COMMUNITY. AS WE STRUGGLE TO UNDERSTAND THE LOSS OF PRECIOUS LIVES, BRONXVILLE POLICE SAY SERGEANT MORGAN FELL TO SHOW UP FOR HIS EVENING SHIFT LAST NIGHT, SO THEIR DEPARTMENT CONTACTED CLARKSTOWN POLICE, WHO MADE THE BRUTAL DISCOVERY IN THE SERGEANT'S HOME AT 1220 THIS MORNING. A HANDGUN RECOVERED AT THE SCENE AND BRONXVILLE POLICE JUSTRILLIONECENTLY PUTTING OUT A STATEMENT SAYING THE DEPARTMENT IS IN UTTER SADNESS AND SHOCK RIGHT NOW. SERGEANT MORGAN JOINED THE NYPD BACK IN 2000. HE MOVED OVER TO BRONXVILLE POLICE IN 2007 AND WAS PROMOTED TO SERGEANT IN 2016. WHEN I ASKED SERGEANT MORGAN'S FATHER IF THERE WERE ANY RED FLAGS RECENTLY THAT HE TOOK NOTICE OF ALL HE COULD REALLY TELL ME IS THAT HIS SON WAS PLANNING TO RETIRE EARLIER THAN HE WANTED TO. THE CIRCUMSTANCES OF THAT A BIT UNCLEAR, RIGHT NOW. WE'RE LIVE IN