Tonight on PBS News Weekend, the latest from Jacksonville, Florida, were a gunman killed

three black people in a racially motivated attack.

Then new research reveals a genetic variation that increases the risk of Parkinson's disease

in people of African descent.

And as a rice shortage sends prices soaring, a look at the effects of climate change

on the global food supply.

Climate change isn't just the negative blanket of adverse impact, but there will be winners

and losers.

Good evening, I'm John Yang.

As Americans mark the 60th anniversary of Martin Luther King Jr.'s, I have a dream speech

yesterday's fatal shooting of three black people by a white gunman in Jacksonville, Florida

is a brutal reminder that race-based hate is still among us.

Authorities say the shooter who turned one of his guns on himself left behind writings

detailing his ideology of hate.

And the FBI says it's investigating the rampage as a hate crime.

Late today, President Biden said in his statement, hate must have no safe harbor, silence

is complicity, and we must not remain silent.

Our report is from Ali Rogan and we should warn you some of the images may be disturbing.

In the new town area of Jacksonville, neighbors gathered to lift each other up and grieve.

Our community is sick and tired of being sick and tired.

Authorities today name the gunman as Ryan Christopher Palmetter.

The shooting began Saturday afternoon at a dollar general store.

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