Tonight on PBS News Weekend, five years after the murder of George Floyd, his family

tells us their fight for racial justice and police reform goes on.

Then tensions in the South China Sea mount as Chinese Coast Guard ships clash with Philippine vessels in disputed waters.

And 50 years after the blockbuster movie Jaws, an endurance swimmer navigates the waters around the island

where it was filmed to change perceptions about sharks.

For the past 50 years, it's all been about fear and about the danger of sharks.

I want to try to change the narrative for a new generation and say,

sharks actually bring life, they sustain life, they make oceans healthy. Good evening. I'm John Yang. It was five years ago today that George Floyd was killed by Minneapolis police.

Cell phone video of the event, captured by a young witness, sent shockwaves around the world

and triggered an American reckoning with racial justice and police use of force. Today,

vigils were held in cities across America to mark the day. In Minneapolis, at the intersection

where Floyd died, crowds placed flowers on his memorial. But despite the protests and the focus on race

and racial inequality that followed Floyd's death, a recent Pew Research poll found that

72 percent of American surveyed said it did not lead to changes that improved black people's

lives. Earlier, I spoke with Selwyn Jones, who's George Floyd's uncle.

He's co-founder of the Justice 929 Foundation, a nonprofit that promotes civil rights and systemic change.

Our conversation is part of our ongoing series, Race Matters.

I imagine this time of year has got to be difficult for you and your family.

What are you thinking about?

What do you think about when this anniversary comes rolling around?

The impact that it made upon the world.

COVID came.

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