There was widespread disobedience to the Fugitive Slave Act of 1850, which enlisted the powers of the national government to return escaped slaves to their masters. Blacks and whites joined in armed resistance. When they were arrested, it often happened that juries, defying the Fugitive Slave Act themselves, would acquit them. In Boston, for instance, in 1851, a man named Shadrack was rescued from a courtroom by 50 blacks, eight of whom were tried and acquitted. That same year, the escaped slave Jerry was rescued from a police station in Syracuse. Eighteen men were indicted, all were acquitted. In 1854, President Franklin Pierce dispatched federal troops, joined by state militia and local police, to capture Anthony Burns, a slave who had escaped to Massachusetts from Virginia. Citing the Fugitive Slave Act, on May 27, 1854, Commissioner Edward G. Loring ordered Burns be returned to slavery in Virginia. The night before, black and white abolitionists used a battering ram against the courthouse doors but were repulsed. On June 2, Burns was marched to the waterfront, through streets draped with black cloth and lined with thousands of his supporters, to the sound of church bells toiling, and was forcibly sent back to slavery. On the eve of Bums's sentencing, the Unitarian abolitionist minister Theodore Parker, a supporter of the rebel John Brown, gave this rousing address to a packed meeting house in Boston. That night thirteen people were arrested and one marshal killed.