In the wake of the controversial police shooting of a mentally ill senior citizen in the Bronx, protestors are taking to the streets this weekend. Our Erin Clarke Reports.

In 2012 Hawa Bah called 911 asking for an ambulance to the home of her depressed son.

That night Mohamed Bah was shot dead by responding officers who say he lunged at them with a knife.

"The system, the government, can imagine if it's their own child, how they would feel?" Bah said Saturday.

The grieving mother joined dozens in Harlem for a national day of protest, a march and ceremony to remember those killed during conflicts with police.

Since 1996, the Coalition to Stop Police Brutality, Repression and the Criminalization of a Generation has been organizing these protests every October 22 in cities across the country.

"To bring together people of all different nationalities, faiths, viewpoints, who want to stand together and stop this epidemic of the police getting away with murdering the people," said protester Travis Morales.

Coalition members say their cause is just as important today as it was 20 years ago.

They point to Deborah Danner's death earlier this week.

The 66-year-old mentally ill Bronx woman was shot in her home by a police sergeant who said she swung at him with a bat.

"I've been marching with my father who's a senior and my mother who's a senior," said one woman. "I have a son and daughter and I feel like it could be any one of us."

And though whipping winds and rain caused the events to start late and seemingly were to blame for a smaller crowd than the hundreds expected, those in attendance say their message wouldn't be dampened.

"Three people a day getting murdered at the hands of the police," said protester Amina Gonzalez. "One in three black men in their lifetime being incarcerated. We're hitting genocidal proportions and this is why yes there's a modeling that happens here of people saying I refuse to live in a world like that."

Millions nationwide who are challenging a system they say is harmful to the people it's supposed to protect.