Milan, May 29 - Four of six sentences of life in prison for the first-degree murder of mafia witness Lea Garofalo were upheld Wednesday by the Court of Appeal of Milan. That included the sentence of life imprisonment with one year in solitary confinement passed in March 2012 on the woman's former husband mobster Carlo Cosco. A similar life sentence was upheld against his brother Vito Cosco, who will spend eight months in solitary confinement. Garofalo turned on her mobster husband and gave police details of numerous crimes he had committed. In revenge, Carlo Cosco and his brother kidnapped her from the center of Milan, killed her in November 2009, and disposed of the body. Initially, police thought her body had been dissolved in acid but later concluded it had been burned. Her daughter Denise Garofalo is now living under state protection for testifying against her mobster father in his trial for the abduction, torture and murder of her mother. Her evidence led to the life imprisonment sentences, in spite of the fact that her mother's body was never recovered. Rosario Curcio and Massimo Sabatino also saw their life sentences upheld in Garofalo's murder. But defendant Carmine Venturino saw his sentence reduced to 25 years for cooperating with the prosecution while a sixth man was acquitted. The Court also confirmed compensation for the victim's family, including 200,000 euros for Denise Garofalo as well as 50,000 euros for her mother and sister.