``Dark Minds'' brings together the sharp criminal minds of author and investigative journalist M. William Phelps and pre-eminent criminal profiler John Kelly to reopen unsolved homicides thought to be the work of serial killers. They are assisted in their efforts by a source known only to viewers as ``13,'' a convict serving multiple life terms for a series of murders, who presents Phelps and Kelly with theories on the homicides based on his own experiences. In addition to…