Al Capone charities and was viewed by many as "modern-day Robin Hood". However, the Saint Valentine's Day Massacre, in which seven gang rivals were murdered in broad daylight, damaged Chicago's and Capone's image, leading influential citizens to demand government action and newspapers to dub Capone "Public Enemy No. 1". The federal authorities became intent on jailing Capone and prosecuted him in 1931 for tax evasion. During a highly publicized case, the judge admitted as evidence Capone's admissions of his income and unpaid taxes during prior (and ultimately abortive) negotiations to pay the government taxes he owed. He was convicted and sentenced to
Al Capone spending. The key to Capone's conviction on tax charges was proving his income, and the most valuable evidence in that regard originated in his offer to pay tax. Ralph, his brother and a gangster in his own right, was tried for tax evasion in 1930. Ralph spent the next three years in prison after being convicted in a two-week trial over which Wilkerson presided. Capone ordered his lawyer to regularize his tax position. Crucially, during the ultimately abortive negotiations that followed, his lawyer stated the income that Capone was willing to pay tax on for various years, admitting income of