Serial murder peaked during the 1970s and 1980s , as Alan Smith and David Miller write . ( CNN ) -- Rapid growth of U.S. urban population may have contributed to the decline , they say . But there are still as many as 10 serial killers caught each year by police , they write .
Serial murder peaked during the 1970s and 1980s , as Alan Smith and David Miller write . Rapid growth of U.S. urban population may have contributed to the decline , they say . But there are still as many as 10 serial killers caught each year by police , they write .