Here's image description and ASL gloss:

(Imagine description: Wearing a soft beret and a patterned jacket with decorative, almost floral textures, the man has a full beard and a warm expression. The background is dark, featuring black and white art. The color palette is too vibrant for the tragic theme, which is meant to evoke sign language. My color theory is present, but it feels out of place in this gloomy and rainy setting. The video shows English gloss as caption, ASL gloss below in the post.)

HEART STILL BEATING…
NONE-WRITE. NONE-SIGN.
JUST THINK. REMEMBER MOMENT PAST APPRECIATE.
PLAY GAME ’90s ZELDA: OCARINA TIME,
FAVORITE HIGH-SCHOOL DAYS.

UNTIL REALIZE
LEWISTON SHOOTING IMPACT PEOPLE
AGAIN HIT NEW SHOOTING
NEARBY TOWN.

ACTIVE SHOOTING NOT-STOP.
ME START RESEARCH NATION-WIDE—
LEWISTON MAINE; UVALDE TEXAS;
BUFFALO NEW YORK; HIGHLAND PARK ILLINOIS;
MONTEREY PARK CALIFORNIA.MANY MORE IN THE LITTLE SPACES BESIDES MAJOR ONES.

TYPING FEEL LIKE BREATHE.
EVERYDAY SEE HEARING PEOPLE
KNOW FEW SIGN ONLY,
GESTURE ENOUGH, CONNECT NOT-ENOUGH.

IF THEY KNOW-MORE,
THIS POST MAYBE NONE-EXIST.

ME GRATEFUL WE-ALL TRY MERGE—
BLACK WHITE GREY,
SCHOOL-ZONE REAL-LIFE-ZONE,
HOME IN-BETWEEN.

MORNING, AFTER NIGHT READ SHOOTING NEWS,
ME EXPERIENCE SHAKE.

DOORDASH, ARRIVE DUNKIN.
MAN EXIT. FACE STOIC.
WALK-TO CAR, CIRCLE,
COME LEFT-WINDOW.
HAND SLOW MOVE-BEHIND-BACK.

ME THINK: GUN.

INSTEAD, PULL PHONE,
ASK ME CHARGER.
ME SAY NO.
HE LEAVE.

LATER, COUNTER INSIDE,
LEG START SHAKE.
NOT CAR. NOT MOMENT. AFTER.

ME THINK STOP WRITE. STOP SIGN. STOP POST.
BUT REALIZE CAN’T.
MUST PREPARE ANYTHING.
WRITE = PROCESS.
NOT MONEY. NOT POWER. NOT ATTENTION.
SOUL.

ARTICLE SHOOTING SAME SAME CYCLE:
PROBLEM REPEAT. SOLUTION-NONE. HOPE-NONE.

QUIET SUICIDE SILENCE.
LOUD SUICIDE MASS-KILL.

IF CONFLICT SOLVABLE-NOT-DEATH →
APOLOGIZE. TEACH. LEARN. MOVE-FORWARD.

IF SYSTEM LIKE SAND UNDER ROCK,
NEED REBUILD STRONG HOLD MOUNTAIN KISS SKY.

ALSO ABOUT DEPRIVATION—
CENTURY IMPACT NATIVE AMERICANS LAND.
LOINS → COATS, FEATHERS → HATS,
SPEARS & ARROWS → SWORDS & GUNPOWDER.

LOINS CAMOUFLAGE,
COATS POWER,
FEATHERS HOPE,
HATS BLOCK SUN MESSAGE,
ARROWS AIM,
GUNPOWDER DESTROY.

THESE TOOLS SURVIVAL & DOMINANCE ECHO-TIME.
REMIND SYSTEM POWER VIOLENCE PERSIST.
TODAY CHOICES WITH WORDS, SIGN
MORE POWERFUL THAN WEAPON.

IMAGINE KID ACCESS AR-15,
SOCIAL MEDIA STREAM LIVE,
REACH WAR → SPECTACLE, NOT PEACE.

FBI BEST ADVICE? RUN. HIDE. FIGHT.SCHOOL BEST ADVICE: LEARN, EDUCATE, EMBRACE.

AFTER ALL, THINK FAVORITE POET CROM,
POEM ABOUT GUNS.ONE OF ASL POETS ABOUT GUNS.MELT BULLET, SiGN STRONG.

BUT REMEMBER:
SIGNING & WRITING
FAR MORE POWERFUL THAN FIREPOWER.

IF SOLUTION BLOCK,
KILL NOT ANSWER.
OPPOSITE KILL = CREATE, GIVE-LIFE, PROTECT, CONNECT.
BUILD NOT DESTROY.

MORNING, GRATEFUL.
PHONE NOT BULLET.
CONCORD CHANGE. CONSCIENCE STILL.

END, NOT STATE, NOT NATION.
SOUL.