Phyllis Gray in 2005 after her third son, Carlos Phillips, was shot and killed. On Sept. 17, a fourth son, Alonzo Phillips, 31, was killed at a community barbecue in Southeast Washington. (Susan Biddle/The Washington Post)

The fourth time around, it doesn’t get any easier to bury a son lost to gun violence.

Phyllis Gray is 53 and tired. Tired of the calls, tired of the funerals, tired of T-shirts with the faces of four dead sons. Tired of no justice.

She tried to lift her spirits a bit over the weekend with a new haircut, but, of course, it didn’t help.

“Justice is what I want,” she told me, leaning against the fence outside her apartment building on a leafy street in Southeast Washington, where three young boys — like hers once were — played soccer on the small lawn.

For the fourth time in her life, Gray got the news that a son had been gunned down on a D.C. street.

Evidence markers are scattered around the crime scene on Birney Place in Southeast Washington, where two people were killed and seven others injured on Sept. 17. (Faiz Siddiqui/The Washington Post)

And as the nation’s elite — a president and a former president, billionaires, lawmakers and celebrities — gathered just a few miles away to celebrate the opening of the National Museum of African American History and Culture, Gray was stuck in a cycle all too familiar in her neighborhood.

Violence, silence. Violence, silence.

Over and over.

The first time she became a grieving mother was in February 2001, when her son Samuel Phillips, 23, was killed at a D.C. halfway house.

A suspect was arrested, but before his trial began in 2004, Gray got the call again. Samuel’s 21-year-old brother, Demetrius, one of the prosecution’s witnesses, was killed. No one was convicted in either son’s death, Gray said.

No justice.

[Woman loses a third son to violence]

A shoot out at Dorsey Day, an annual neighborhood block party at Barry Farm in Southeast Washington killed two men and wounded several others. (WUSA)

I met Gray the day before Thanksgiving 11 years ago, right after she received the same call a third time.

On a November night it was Carlos Phillips, 26, who was living in an apartment that his mom kept up for him because she said the father of nine was mentally disabled.

Again, for 11 years, there was no justice. And Gray kept working as a home health-care aide, and her remaining four children got older, finished school, gave her grandbabies.

And then the call came again this month.

It was her fourth son, Scorpio-Rodney Alonzo Phillips. He made it to age 31. Like his three dead brothers, he’d gotten into trouble with the law. But for the past five years, he’d been living a relatively quiet life. He worked as a landscaper, rooted for the Redskins and had a daughter who just started first grade.

On Sept. 17, he was at Dorsey Day, an annual neighborhood block party at Barry Farm, where there was barbecue, a bounce house and go-go bands.

About 8 p.m., when the party was going strong, two men pulled up, unloaded their guns into the crowd and sped off. Nine people were shot, two of them died.

[ D.C. barbecue disrupted by gun fire; residents ask why police weren’t there]

Still, no arrests. Do these black lives matter?

There will be a candlelight vigil for Phillips this week, but no protests. No outrage. Just resignation.

It’s a complex problem, this persistent cycle of violence that plagues America’s poorest neighborhoods. The victims and shooters are mostly young black men.

Homicide rates may rise and fall — heck, D.C. went from 248 homicides in 2003 to 88 in 2012, then back up to 162 last year — but the rate at which they are solved stays relatively the same, which is about 60 percent nationwide.

And it’s that heartbreaking lack of closure that helps feed the cycle of mistrust and, sometimes, of people exacting their own form of street justice.

Violence, then silence, then violence again.

Detectives often struggle to solve crimes in places where mistrust for the police runs deep. Phyllis Gray knows the deadly repercussions of talking to police all too well, after one son was killed as he was about to testify about the death of another.

So the detectives ask questions, no one talks and no one is arrested, let alone convicted. And the lack of justice only deepens the divide between the community and those who are sworn to protect it.

In Southeast Washington, many people describe being hassled or harassed by officers. How does a community trust police who have pulled a son over a dozen times, but can’t find his killer after that horrific call comes?

In Charlotte, in Baton Rouge, in Dallas, in Baltimore, in Ferguson, protesters demand accountability when a black man gets killed at the hands of police under questionable circumstances. And justifiably so.

But Phyllis Gray and mothers like her still want police to solve the killings of their sons. In their neighborhoods, black lives matter also means finding a way to end the cycle of violence, then silence.

Twitter: @petulad