The Lock Artist by Steve Hamilton Minotaur Books, $14.99, 304 pages, ISBN 978-0-312-38042-7 Over the next three or four weeks, who knows, maybe longer, we’ll review some of the novels, and the novelists, who’ve been awarded and Edgar.  The Edgars are given each spring by the Mystery Writers of America (MWA) for the best mysteries of the year in several categories, but our focus will be on two of