Boston parents disheartened by deadly Nashville school shooting

DANAE BUCCI, LIVE IN BOSTON. >> PARENTS ARE UNDERSTANDABLY SHAKEN UP BY THIS MOST RECENT SCHOOL SHOOTING. AND EXPERTS SAY SCHOOLS SHOULD BE DOING MORE TO PROTECT STUDENTS. >> IT’S SICKENING, IT’S DISHEARTENING, IT’S ANGERING, WHEN YOU LOOK AROUND THE COUNTRY IMAGES OF ANGUISH OUT OF NASHVILLE, TENNESSEE. IT’S SOMETHING THAT’S BECOME TOO FAMILIAR FOR FAMILIES NATIONWIDE. INCLUDING LUZ PRESINAL WHO TALKS TO HER THREE YOUNG CHILDREN ABOUT SCHOOL SHOOTERS. >> ALWAYS FOLLOW YOUR TEACHERS INSTRUCTIONS, HIDE, DON’T TRY TO BE A LIFESAVER. JUST HIDE. THAT IS THE MOST IMPORTANT...