Tuesday marks the one year anniversary since Miami teenager, Trayvon Martin was shot and killed.

Martin was killed in Sanford by neighborhood watch leader, George Zimmerman. At the time, the 17-year-old was wearing a hoodie and walking back to his father's home from a convenience store. The confrontation then occurred between him and Zimmerman.

In his honor, supporters will wear hoodies during a candlelight vigil in New York's Union Square Tuesday night.

Zimmerman is awaiting trial and says the shooting was in self-defense.

5 things: George Zimmerman and Travyon Martin

February 26, 2012.

That was the day two strangers -- Trayvon Martin, an unarmed black teenager walking back with Skittles and an iced tea he'd picked up at 7-Eleven, and George Zimmerman, a white Hispanic neighborhood watch volunteer in Sanford, Florida -- met for the first and only time.

It's been nearly a year since Zimmerman shot Martin to death. The incident generated huge outrage across the country for months and led to a wide-ranging conversation about the state of U.S. race relations.

Zimmerman acknowledged shooting Martin but said it was in self-defense. Attorneys for Martin's family have accused Zimmerman of racially profiling Martin and shooting him "in cold blood."

Attention to the case has died down substantially in recent months, and you may have been focused on other things. Here are a few things you might not know about the case, which is scheduled for a June 10 trial.

1. Photos, evidence trickle out, seemingly helping, hurting both sides

From the beginning, Zimmerman insisted he was a victim: Martin attacked him, then they tussled, he said. At one point, the teenager forced Zimmerman to the ground -- his head hitting the pavement -- and he cried out for help. It was then that Zimmerman, saying he had no other choice, shot Martin.

Martin's family members say Zimmerman tracked down and sought out Martin, ignoring a 911 dispatcher's directive, then shot dead the unarmed teen. Unless there's a plea deal, the case is dismissed or there is another unexpected turn of events, the final decision of who is right and wrong will be made by jurors.

When they do, they'll delve into mounds of evidence, key elements of which emerged well after the initial hubbub erupted.

For example, did Martin handle the gun he was ultimately shot with? No, according to test results made public last May, which showed evidence of Zimmerman's hands on the firearm, but not those of the teenager he killed. And an analysis showed that scrapings from underneath the teenager's fingernails did not contain any of Zimmerman's DNA, as may rub off in a prolonged struggle.

Yet Zimmerman has said there was a bloody fight before the shooting, and he's got the pictures to prove it. Those include photos, reportedly taken minutes after the shooting, showing streaks of blood on the back of Zimmerman's head. And in December, a photo posted on Zimmerman's defense web site, one that his lawyers say was taken that same winter night, showed the defendant with blood on his nose and lips.

2. George Zimmerman's legal defense fund keeps pulling in cash -- and needs it

As of January 2, the fund had raised $314,099, according to a web site established by Zimmerman's legal team to solicit contributions to help pay for the defense effort. That's up from the $180,000 Zimmerman raised on his own before turning the money over to his lawyer last year.

What's the money been used for? The biggest single expense remains the $95,000 bond to secure his release from jail. The fund has also paid $61,747.54 in living expenses for Zimmerman and his wife, who are now living in an undisclosed rental home, at a price his legal team describes as "reasonable," in Seminole County, Florida. Other expenses include $56,100 for security, a little more than $76,000 in expenses for the law firm and the case, and $3,201 in miscellaneous expenses. Those include Zimmerman's GPS monitoring fees, office supplies and the occasional pizza for interns on the case, who work for free, according to the web site.

And they say they need much more money. Claiming that Zimmerman's team is already operating "on a shoestring budget, relying on individuals who have been willing to work for free or at a substantially reduced rate," a message on the defense fund's web site predicts the total costs of defending Zimmerman will top $1 million. His two top defense attorneys, Mark O'Mara and Don West, have not been paid yet, the web site states.

"The state has virtually unlimited resources to prosecute George," the web site reads. "To finance his defense, however, George relies on the generosity of individuals who believe he is innocent."

3. Zimmerman is not just fighting the prosecution, he's also suing NBC

In December, Zimmerman filed a lawsuit accusing the network of taking his comments to a 911 dispatcher out of context in an effort to sensationalize the case. The lawsuit accuses the network of removing nearly a minute of dialogue and dead air between Zimmerman and the dispatcher to bring comments that Martin appeared to be "up to no good" and "he looks black" closer together. The lawsuit also accuses NBC of falsely claiming Zimmerman used a racial epithet in describing Martin.

The network, Zimmerman's suit claims, used "deceptive and exploitative manipulations" to increase ratings.