ATLANTA – One week after a jury found George Zimmerman not guilty in the death of unarmed teen Trayvon Martin, people gathered for nationwide rallies to press for changes to self-defense laws and for federal civil rights charges against the former neighborhood watch leader.

The Florida case has become a flashpoint in separate but converging national debates over self-defense, guns, and race relations. Zimmerman, who successfully claimed that he was protecting himself when he shot Martin, identifies as Hispanic. Martin was black.

“It’s personal,” said Cincinnati resident Chris Donegan, whose 11-year-old son wore a black hoodie to the rally, as Martin did when he died. “Anybody who is black with kids, Trayvon Martin became our son.”

The Rev. Al Sharpton’s National Action Network organized the “Justice for Trayvon” rallies and vigils outside federal buildings in at least 101 cities, from New York and Los Angeles to Wichita, Kan., and Atlanta, where people stood in the rain at the base of the federal courthouse, with traffic blocked on surrounding downtown streets.

Chants rang out across the rallies. “Justice! Justice! Justice! … Now! Now! Now!” “We won’t forget.” “No justice! No peace!” Many also sang hymns, prayed and held hands.

And plenty of participants carried signs: “Who’s next?” “I am Trayvon Martin.” “Enough Is Enough.”

Most rallies began at noontime. In New York, hundreds of people — including music superstars Jay-Z and Beyonce, as well as Martin’s mother, Sybrina Fulton — gathered in the heat.

Fulton told the crowd she was determined to fight for societal and legal changes needed to ensure that black youths are no longer viewed with suspicion because of their skin color.

“I promise you I’m going to work for your children as well,” she said to the rally crowd.

At a morning appearance at Sharpton’s headquarters in Harlem, she implored people to understand that the tragedy involved more than Martin alone. “Today it was my son. Tomorrow it might be yours,” she said.

In addition to pushing the Justice Department to investigate civil rights charges against Zimmerman, Sharpton told supporters he wants to see a rollback of stand-your-ground self-defense laws.

“We are trying to change laws so that this never, ever happens again,” Sharpton said.

Stand-your-ground laws are on the books in more than 20 states, and they go beyond many older, traditional self-defense statutes. In general, the laws eliminate a person’s duty to retreat in the face of a serious physical threat.

Zimmerman did not invoke Florida’s stand-your-ground law, instead relying on a traditional self-defense argument. Nor was race discussed in front of the jury that acquitted Zimmerman. But the two topics have dominated public discourse about the case, and came up throughout Saturday’s rallies.

Part of Sharpton’s comments echoed those made by President Barack Obama on the case Friday. “Racial profiling is not as bad as segregation, but you don’t know the humiliation of being followed in a department store,” Sharpton said.

In Indianapolis, the Rev. Jeffrey Johnson told about 200 attendees that the nationwide effort is about making life safer for young black men. Johnson said young black men still are endangered by racial profiling, and he compared Zimmerman’s acquittal to that of four white officers in the beating of black motorist Rodney King in 1992.

“The verdict freed George Zimmerman, but it condemned America more,” said Johnson, pastor of the Eastern Star Church in Indianapolis and a member of the board of directors of the National Action Network.

In Miami, Tracy Martin spoke about his son. “This could be any one of our children,” he said.

He recalled how he vowed to Trayvon as he lay in his casket that he would seek justice.

“I will continue to fight for Trayvon until the day I die,” he said.