Complex sentence: Those resulted in fatalities, not including 24 deaths in 32 aircraft hijackings; this includes Pan Am Flight 73 where a Boeing 747-121 was hijacked by four terrorists and resulted in 20 deaths.
Split into simpler sentences: Those resulted in fatalities, not including 24 in 32 aircraft hijacking. This includes Pan Am Flight 73 where a Boeing 747-121 was hijacked by four terrorists and resulted in 20 deaths.