The marchers included politicians, law enforcement and relatives of domestic violence victims. One woman was there to honor her daughter who was in an abusive relationship.
"She tried to get out," Mara Perez said. "She made the choice to try to do it by herself without telling anybody and he killed her."
"There are ways that we can prevent domestic violence," said San Jose councilmember Pete Constant. "We are asking people to speak up, because when you speak up about domestic violence, you save lives."
Before the walk, roses were placed on 12 empty chairs to honor the 12 people who have died because of domestic-related violence this year in Santa Clara County.
Advocates say one in four women are affected by domestic violence.