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The 17 year old's name echoed through Union Square Tuesday night as his parents came to honor their son, dead now for a year.

"Trayvon is in heaven and this we know," said Sybrina Fulton, Martin's mother. "He's resting. He's in God's hands."

On Feb. 26, 2012 George Zimmerman, a neighborhood watch volunteer in Sanford, Fla., spotted Trayvon Martin in the gated community, thought he looked suspicious, and followed him.

The two argued and the unarmed teen was shot dead.

The shooting sparked outrage across the country. It lead to marches in New York City and elsewhere with calls for Zimmerman's arrest.

It was weeks before he was finally taken into custody.

He claimed self defense under Florida's "Stand Your Ground Law." He said he felt his life was in danger.

Prosecutors charged him with second degree murder.

The vigil Tuesday took on the air of a protest at first.

Participants showed concern over police brutality, the NYPD's "stop and frisk" policy and society's racism in general.

"I'm afraid that my adult children are going to be victims," one person said.

But later, the demonstration became more somber with the arrival of Martin's parents.

"It's a somber day for us, but also it's a day of peace for us," Martin's father Tracy said. "Because we know as parents that we have done all we can do to make our children's lives right."

The teenager's parents said they're still trying heal. They thanked supporters, among them actor Jamie Foxx, who called the loss personal.

"All we're asking is simplicity," Foxx said. "The simple thing is allow the court system to work."

A judge will hold a hearing in the next few months on Zimmerman's immunity claim based in the Stand Your Ground law.

The trial is set for June.