"The whole world was looking at this case for a reason ... We'd be intellectually dishonest if we didn't acknowledge the racial undertones in this case," Martin family attorney Benjamin Crump said. "So we have to have very responsible conversations about how we get better as a country and move forward from this tragedy and learn from it."
Prosecutor Angela Corey said Martin was unfairly viewed as a criminal before he was shot.
Amid the national debate about whether Zimmerman racially profiled Martin, defense attorney O'Mara suggested his client was actually profiled by critics.
"I think things would have been different if George Zimmerman were black for this reason: He never would have been charged with a crime," O'Mara said.
He said the country "absolutely" needs to have a conversation about whether young black males are treated differently in the criminal justice system -- but said that conversation is a separate topic from what happened the night Zimmerman and Martin met.
Martin family attorney Natalie Jackson commended the millions of people who signed an online petition "not in an effort to persecute George Zimmerman, but in an effort to say a black 17-year-old child should be able to walk home from the store and not be shot."
She said their efforts were not in vain.
"I don't want them to be discouraged because I think they may have saved the life of another child," Jackson said. "I think that from now on, if there is someone who wants to follow someone with a gun, I think they'll think twice about it."
The fateful night
The deadly encounter took place on February 26, 2012, as Martin walked back to his father's fiancee's house through the rain from a Sanford convenience store. The 17-year-old was carrying Skittles and a drink.
Zimmerman, a neighborhood watch volunteer, spotted him and called police.
A 911 dispatcher told Zimmerman that officers were on the way and not to follow the allegedly suspicious person. But Zimmerman still got out of his car, later telling police he just wanted to get a definitive address to relay to authorities.
Sometime after that, Zimmerman and Martin got into a physical altercation. Questions later arose about who was the aggressor, about whether Martin may have seen or reached for Zimmerman's gun, and about whether Zimmerman should have had more injuries if he was pummeled, as he claims.
Prosecutors never accused Zimmerman, who identifies himself as Hispanic, of being racist. But they did argue that he wrongly and spitefully prejudged Martin as one of those "f***ing punks," as he's heard saying under his breath in his call to police.
"The defendant didn't shoot Trayvon Martin because he had to," Assistant State Attorney John Guy said. "He shot him because he wanted to. That's the bottom line."
The defense contended that Martin jumped out of some bushes and pounced on Zimmerman as he was walking back toward his car that night, then punched him and slammed his head repeatedly into the concrete sidewalk.
Zimmerman's account of what happened the night of the shooting was a central part of the trial. He was the only living person who witnessed the entire incident, and there wasn't much physical evidence for either team to fall back on.
The NAACP has called for the Justice Department to file civil rights charges against Zimmerman and urged the public to sign a petition to support the effort.
"The most fundamental of civil rights -- the right to life -- was violated the night George Zimmerman stalked and then took the life of Trayvon Martin," the advocacy group said in a statement.
O'Mara said if anyone tries to sue Zimmerman, "we will seek and we will get civil immunity in a civil hearing. And we will see just how many civil lawsuits have spawned from this fiasco."
But for now, both families will reflect and try to move forward.
"Trayvon Martin will forever remain in the annals of history next to Medgar Evers and Emmett Till as symbols for the fight for equal justice for all," Crump said.
When asked what he has to say to Trayvon Martin's parents, Robert Zimmerman Jr. said he understands their pain.
"There are no winners. They will not win or lose anything more than they already have lost, which is their son's life, by any kind of verdict for George," Robert Zimmerman said. "I applaud them for asking for the verdict to be respected. ... And I will pray for them."