Saturday's surprising verdict in the Trayvon Martin case outraged many after George Zimmerman was found not guilty in the murder of Martin. Since then a rash of protests, especially in California, have broken out as people voice their anger over what they believe to be a racist court system.

"What do we want? Justice. When do you we want it? Now. For who? Trayvon!" yelled a group of around 40 protesters gathered at Sacramento City Hall after the trial's verdict was announced.

Rallies were held in many of California's major cities, including Los Angeles, Oakland, San Diego and San Francisco. Though so far the vast majority of protesters have been peaceful, not all of them have been so civil, and police across the state of California are bracing themselves for possible violent situations.

So far, the violence has been contained. Saturday night, protesters in Oakland broke windows at the Oakland Tribune and set small fires in the streets. Reports are coming in that they also vandalized a police squad car, with local police having to form a barricade to block the riot's progress.

"Certainly people have the right to express themselves," said Najee Ali, a community activist. "They're angry. I'm angry. I'm outraged. But certainly closing freeways, shutting them down, and vandalism is not the way to protest."

There were also large protests in San Francisco's Mission District as well as Los Angeles' Leimert Park. While those protesters did get a little rowdy, authorities say that in all the proceedings were under control and violence was kept to a minimum.

In total, police say that so far there have been seven arrests attributed to protesters of the Trayvon Martin murder trial. Newly-elected Los Angeles Mayor Eric Garcetti flew back to the city over the weekend to deal with the situation. Mayors across the state of California are urging people not to lose their heads in the wake of the verdict.

"[The Trayvon Martin case] raised powerful, incredibly difficult issues" surrounding racial profiling, but people "dishonored the memory of Trayvon by engaging in violent activities that hurt our growing economy and endangered people," noted Oakland Mayor Jean Quan, adding: "We will not tolerate violence in our city."

It is believed by many that George Zimmerman should have received at least partial accountability for his role in the death of 17-year-old Martin. Popular opinion seemed to hold that he should have at least been convicted of manslaughter, but Zimmerman was helped out by Florida's Stand Your Ground law, ultimately leading to his acquittal.