They both ought to be shot in the back of the head and trown into a dumpster.
I've been fascinated by this case since I read Kent Walker's SON OF A GRIFTER. Kent was Sante's son by her second marriage, and in the book he recounted her forty-year career of scams, stealing, arson, assault, enslaving (literally) her employees, and murder. Every page has some appalling anecdote about Sante on it, making it probably the best value out there for your true-crime book-buck.
As it stands, Sante & Kenny may never stand trial for two other murders they almost certainly committed: that of Syad Ahmed in the Bahamas (he was an offshore banker who found out too much about their operations); and Elmer Holmgren in California (a disbarred lawyer who agreed to snitch on them for immunity; he may have been offed down in Costa Rica.)