Complex sentence: He has been credited with devising successful negotiating strategies and tactics used in several high profile hostage situations including the 1976 TWA Flight 355 hostage situation and the 1977 kidnapping of the son of Cyprus' president.
Split into simpler sentences: He has been credited with devising successful negotiating strategies and tactics used in several high profile hostage situations. In 1977, he was involved in the kidnapping of the son of Cyprus' president.