Categories Gospel The Columbo Tactic Post author By dave Post date October 19, 2012 No Comments on The Columbo Tactic Greg Koukl shares a key tactic when dealing with skeptics. He calls it the Columbo Tactic: (HT: Justin Taylor) ← The Gospel Hermeneutic → The Gospel and Eschatology Leave a Reply Cancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed.