Thousands of protesters gather in São Paulo to mark the one year anniversary of former President Luiz Inácio Lula da Silva's arrest.<br /><br />Many of the former president's supporters can be seen chanting and wearing clothing with the phrase "Lula Livre (Free Lula)."<br /><br />Lula da Silva is serving a 12-year prison sentence on corruption charges.<br /><br />This footage was captured on April 7.
