Sanford, Fla., chief to resign; officials must OK

Zimmerman was fitted with an electronic device when he was released Sunday, according to a statement from the Seminole County Sheriff's Office. That would allow law enforcement to monitor him if he leaves the state.

Defense attorneys for other high-profile clients who awaited trial on bail have said Zimmerman should leave Florida and refrain from going out in public.

About a half-dozen photographers and cameramen camped outside the Sanford jail Sunday, focused on the door marked "Bonds Rooms," where other people who had been arrested and released on bail exited.

Sanford Commissioner Patty Mahany, whose district includes the neighborhood where Martin was killed, said Sunday that things had calmed down.

"I think now that people are able to see the justice system taking place, even though they understand it's going to be quite slow, people are willing to just remain calm and really we're all getting back to our daily routines," Mahany said.

Meanwhile, Martin's parents published a "Card of Thanks" in The Miami Herald obituary page Sunday. The note says Sybrina Fulton and Tracy Martin express their appreciation for all the public's support since their son's death. The notice includes a photograph of Trayvon Martin dressed in a hooded sweatshirt, similar to one he was wearing the evening he was killed.

"Words will never express how your love, support and prayers lifted our spirits and continue to give us the strength to march on," the letter says.

Associated Press photographer Brian Blanco in Sanford, Fla., contributed to this report.