AMNA NAWAZ: Two stories of homeowners shooting a teen and killing a young adult for going to the wrong address have stunned many around the country.

Both suspects in these cases are now charged.

But that's hardly easing any of the anger or the grief.

Our communities correspondent, Gabrielle Hays, begins with this report.

GABRIELLE HAYS: Hundreds of students walked out of Staley High School in Kansas City today to demand justice in the shooting of their fellow classmate Ralph Yarl.

Authorities say an 84-year-old white man shot the Black teenager Thursday night after Yarl mistakenly went to his home to pick up his younger brothers.

The homeowner, Andrew Lester, has now been charged with two felony counts, including first-degree assault.

He was taken into custody today.

Yarl was shot in the head and the arm.

The 16-year-old was not carrying a weapon and didn't cross the man's threshold.

Yarl's aunt Faith Spoonmore described the terrifying incident.

FAITH SPOONMORE, Aunt of Shooting Victim: He looked my nephew in the eye, told him, "Don't ever come back here again," while he shot him in the head.

My nephew fell to the ground, and he shot him again.

GABRIELLE HAYS: Yesterday, Clay County prosecutors confirmed there was a racial component to the shooting, but did not elaborate.

Yarl is now recovering at home after being hospitalized.

Lee Merritt is the Yarl family's attorney.

LEE MERRITT, Attorney For Family of Ralph Yarl: His prognosis long term is guarded, based on the significance of this kind of traumatic brain injury.

However, how well he is doing is, in fact, miraculous.

And we are excited about the progress that he has made.

GABRIELLE HAYS: Meanwhile, in Upstate New York, outrage is growing in a separate homeowner shooting; 65 year-old Kevin Monahan has been charged in the death of a white woman looking for a friend's house; 20-year-old Kaylin Gillis was riding with friends Saturday when they made a wrong turn on Monahan's property.

Washington County Sheriff Jeff Murphy said she would shot while they were trying to turn the car around in the driveway.

JEFFREY MURPHY, Washington County, New York, Sheriff: Once they determined that they're at the wrong house, the subject came out on his porch for whatever reason, and fired two shots, one of which struck the vehicle that Kaylin was in.

The shooting took place in a world town with limited cell phone service, so Gillis' friends had to drive to a neighboring town to call 911.

After initially resisting, Monahan was taken into custody and booked for second-degree murder.

As anger mounts in Upstate New York, back in Kansas City, Ralph Yarl's supporters are holding a rally to condemn his shooting and cheer on his recovery.

For the "PBS NewsHour," I'm Gabrielle Hays.

AMNA NAWAZ: Activists are calling for hate crimes charges to be filed and Ralph Yarl's shooting.

Meanwhile, late today, the suspect in the case was released on bond.

Joining me now is Kansas City Mayor Quinton Lucas.

Mayor Lucas, welcome to the "NewsHour."

And thank you for joining us.

First and foremost, I know you have been in touch with Ralph Yarl's family.

What can you tell us about how they're doing and how Ralph is doing?

QUINTON LUCAS (D), Mayor of Kansas City, Missouri: Ralph so far has had an absolutely miraculous recovery.

I know there are many more steps ahead.

But to have been shot in the head and shot a second time by this defendant and be out of the hospital by now is absolutely miraculous.

So, I know that, at least physically, they're holding up.

I think, mentally, there will be an ongoing challenge for this young man, who had seemingly everything going for him in the world and who was struck by this unimaginable incident.

AMNA NAWAZ: What about the people in your community?

I mean, the idea that a child, a teenager could be shot just for showing up at the wrong house is a horrifying notion for parents, especially for parents of Black children.

How is this resonating in Kansas City?

QUINTON LUCAS: Terribly.

I mean, it's terrifying for everyone.

This is one of those things that, either for me in public service, I feel like for those of you all in journalism, that you wake up with in the middle of the night that you worry.

I was looking at my door at my home.

And I was just thinking, how can somebody think that it's just right to shoot out front through their door, with two locked doors, by the way?

And the fact that this defendant said basically he was scared of this kid.

And it's what leads to the conversation about race, which I think is very much a part of this.

It leads to the broader concerns about the fact that guns and guns everywhere is literally killing our country.

And so the question we all have to ask at some point is, as we expand stand your ground laws and possession laws for anyone and no red flags for those who shouldn't have guns, when do we stop?

How many rounds get shot?

How many people are harmed?

That, to me, is the concern.

AMNA NAWAZ: Mayor Lucas, what else can you tell us about Andrew Lester, the 84-year-old man who was charged in the shooting?

We know he was charged yesterday, taken into custody late this afternoon and then, as we just heard recently, released on bond.

There were a lot of questions about why he wasn't taken into custody sooner.

What's your understanding of why that unfolded the way it did?

QUINTON LUCAS: Well, I'm learning more as everyone else does, too.

I mean, he turned himself in.

So, something that I know concerns a lot of people in the world is that often, when you don't shoot somebody, maybe you don't have the convenience of showing up at the jail, actually, whatever you want.

But, be that as it may, that's what happened today.

We will learn more about that.

What we have learned is that he's got a particularly, well, not even well-heeled family.

He was able to put $20,000 on to be released.

So this man, who I consider to be a risk, at least to Black people in this community, is out on the streets of Kansas City again, is out and available.

And I don't think the age is an excuse, if what he claims his fear is just seeing a Black boy who is taller than him.

But he's afraid of about 75,000 people in my city.

I find that to be a concern.

And I think that this is something that, hopefully, as we go through this prosecution and get a conviction, hopefully, it's something that does lay a basis for, if not expanded hate crime charges, then certainly a very clear conviction.

AMNA NAWAZ: The prosecutor has said clearly that Ralph did not cross the threshold into the home.

You mentioned that the so-called stand your ground law.

Do you believe that could be used as a defense in this case?

QUINTON LUCAS: I believe they will use several different laws in Missouri, one of which is the castle doctrine.

That exists in most states, that you can protect your home.

It's your castle.

And if you have some apprehension, then you can shoot somebody usually who comes within it, though.

I think any other principles of self-defense are likely.

The concern that I have is that, because we have expanded so many of these self-defense laws, so not only do you just have the right to protect yourself in your home, which has been around for a while.

You can go outside your home.

You can go outside your car.

You can -- as we saw with the Trayvon Martin tragedy, you can pick a fight with someone.

And if you think you're going to lose, then you can still kill them.

I mean, it's out of control.

And I expect every one of these defenses to be raised.

And that's why I think you are seeing people in my community, even after charges are filed, say, we got to do more at the state legislature and in more places addressing racism and addressing guns in our country.

AMNA NAWAZ: Mayor Lucas, in the minute or so we have left, we are talking about a 16-year-old kid here whose parents said he loved video games and music.

He excelled in school.

His life has been forever changed, the life of his family, of his twin younger brothers who he was going to pick up.

You have said that you want to see justice in this case.

So what does justice look like to you?

QUINTON LUCAS: It is.

It is very hard, I guess, because justice for the family is a conviction here.

I see that they have a GoFundMe going.

I hope it's compensation.

I hope it's a lawsuit against this gentleman.

It's him taking care of his life.

But, broader, justices allowing Black people in our country to feel like they are not, in some ways, criminals with everything they do, driving while Black.

Now, what, knocking on the door, ringing the doorbell while Black shouldn't be a thing that people worry about.

So, justice is for a lot more people than just this family, to our whole community.

And we will have to fight to try to get it.

AMNA NAWAZ: That is Mayor Quinton Lucas of Kansas City, Missouri, joining us tonight.

Mayor Lucas, thank you.

Thank you for your time.

QUINTON LUCAS: Thank you.