On the one-year anniversary of Trayvon Martin’s death, the organizers of the “Million Hoodie March” asked people to show their support once again.

The group Facebooked and tweeted the names of children killed by gun violence since Martin’s death -- children from around the country, like 15-year-old Dakota Bright from Chicago, Illinois, or 3-year-old Julio Segura-McIntosh from Tacoma, Washington.

Organizers asked people to put their “hoodies up” -- in remembrance of what Martin was wearing when he was killed -- and gather at 6 p.m. ET Tuesday in Union Square in New York City, with a moment of silence planned for 7:17 p.m. ET.

Hundreds attended the vigil and chanted, "We are all Trayvon Martin." Actor Jamie Foxx was also there and met with Martin's parents, Sybrina Fulton and Tracy Martin.

A similar "Million Hoodie March" was held last year and was attended by more than 1,000 Trayvon Martin supporters. Some carried Skittles, the candy 17-year-old Martin bought on the night he was fatally shot while walking to the house of his father's fiancee in Sanford, Florida.

A petition asking that George Zimmerman be charged with Martin’s death received more than 2 million signatures. The state of Florida has since announced it will be bringing second-degree murder charges against Zimmerman, who says he shot the teen in self defense.

Zimmerman’s “Stand Your Ground” hearing is set for April 22. If Zimmerman’s attorneys are successful at the hearing, their client could walk out of court a free man with immunity from prosecution. However, if they don’t convince the judge, Zimmerman will face a full criminal trial on June 10.

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