Former inmate Talib Akbar says years spent in segregation in the Wisconsin prison system took a toll on his mind. Akbar now lives alone in a small RV that he parks around Madison while volunteering for Wisdom, a statewide faith-based group that campaigns against solitary confinement. The drawing Akbar made while confined in a cell at the Wisconsin Secure Program Facility in Boscobel was used to help make a mock-up of a typical 6-foot-2-wide, 12-foot-long segregation cell that Wisdom takes to public events to raise awareness about solitary confinement. Akbar, 62, served a 20-year sentence for sexual assault until his release in 2013. He said he has never added up the exact amount of time he spent in solitary.