High-profile murderers often attract a fringe element that is, in the face of all evidence, convinced of the accused's innocence. Jodi Arias is no exception. Except, one of her fans is a rapper. Thirty-four-year-old Kareem Williams, a.k.a. Lefty, is a fanatical supporter of Jodi Arias, who was convicted of the murder of her ex-boyfriend, Travis Alexander, in 2013 and sentenced to life in prison earlier this year. Williams has recorded a song expressing sympathy for the woman, who a jury found to have slit the throat of victim Travis Alexander and stabbed almost 30 times. Like many other supporters, he...