Mubarak's party headquarters burned downOn Friday, protesters burned down the headquarters of Mubarak’s ruling party along the Nile and set fire to other buildings, roaming the streets of downtown Cairo in defiance of a night curfew enforced by the first army deployment.Thousands of people defied the curfew for the second night on Saturday, standing their ground in the main Tahrir Square in a resounding rejection of Mubarak’s attempt to hang onto power with promises of reform and a new government.“What we want is for Mubarak to leave, not just his government,” Muhammad Mahmoud, a demonstrator in Tahrir Square, said. “We will not stop protesting until he goes.”On Saturday, there was no police presence on the streets.Instead, military tanks and soldiers were stationed at almost every intersection, as the burned skeletons of police vehicles littered the roads from Friday’s violence.People on their way to Tahrir Square on Saturday scrambled all over the destroyed vehicles, snapping pictures with their cellphones. Residents cheered the tanks whenever they saw them, and some went up to the soldiers and hugged and kissed them, thanking them for being there.On one tank was scrawled black graffiti: “Down with Mubarak.”“We hate the police because they have no humanity,” said Tarek Muhammad, a second-year communications student at Cairo University. “The army knows our rights, and knows what we want, and I think our army can change with us.”Several police stations torchedIn contrast, protesters have attacked police, who are hated for their brutality. On Friday, 17 police stations throughout the capital were torched, with protesters stealing firearms and ammunition and setting some jailed suspects free. They also burned dozens of police trucks in Cairo, Alexandria and Suez.On Saturday, protesters besieged a police station in the Giza neighborhood of Cairo, looting and pulling down Egyptian flags before burning the building to the ground.One army captain joined the demonstrators in Tahrir, who hoisted him on their shoulders while chanting slogans against Mubarak. The officer ripped a picture of the president.“We don’t want him! We will go after him!” demonstrators shouted. They decried looting and sabotage, saying: “Those who love Egypt should not sabotage Egypt!”When thousands of people tried to storm the Interior Ministry, police opened fire. At least three protesters were killed; their bodies were carried through the crowd.The demonstrators are unified in one overarching demand: Mubarak and his family must go. The movement is a culmination of years of simmering frustration over a government they see as corrupt, heavy-handed and neglectful of grinding poverty.Mubarak sacked his cabinet on Saturday and promised reforms to try to quell the protests, but it did not satisfy the demonstrators, who were out in force again to demand a complete change of regime.