Two events planned Monday in the ongoing call for justice in the case of Trayvon Martin's death are expected to be especially somber, as it has now been one month since the 17-year-old was shot and killed by a neighborhood watch volunteer.

Thousands are expected to gather once again for a pair of rallies planned in Sanford, which organizers hope will be similar to last week's rally that brought an estimated 10,000 people to Fort Mellon Park.

Monday's first rally is expected to begin at 4 p.m. at the First United Methodist Church, including a protest march from Centennial Park to the Sanford Civic Center.

The march will also include a protest outside Sanford City Hall.

Then, at 5 p.m., protesters plan to rally at a special town hall meeting at the Civic Center.

City leaders said the doors at the Civic Center open at 4 p.m., but since the city is expecting so many people, officials said they are setting up a jumbo-sized TV screen at Fort Mellon Park to accommodate everyone who shows up for the event.

The Rev. Al Sharpton is expected to return to Florida for the rally, along with the Rev. Jesse Jackson and members of Trayvon Martin's family.

Rallies are being held and scheduled across the country, including in Tampa.

A crowd of close to 1,000 people marched to the intersection of N Dale Mabry Highway and Dr. Martin Luther King Jr. Boulevard in Tampa on Saturday.

On Tuesday, a rally will be held at the 34th Street Church of God in Tampa at 6 p.m. Family members of Martin are scheduled to attend the church rally, which will be at the church, located at 3000 N. 34th Street.

Meanwhile, in Pinellas County, the People's Democratic Uhuru Movement plans a 'March for Trayvon' next Saturday at 11 a.m. The march will start at Uhuru House, 1245 18th Ave. S and ends at City Hall, 175 Fifth St. N. For more information, call (727) 821-6620.

Trayvon Martin's mother spoke over the weekend, thanking the public for their support.

"I like to say that we would really thank them and we appreciate all the support, it means a lot to us,'' said Sybrina Fulton. "This really hits home."