Original sentence: It disintegrated in mid-air en route from Montreal to London, at an altitude of  over the Atlantic Ocean, as a result of an explosion from a bomb.The remnants of the aircraft fell into the ocean approximately  off the coast of Ireland, killing all 329 people aboard, including 268 Canadian citizens, 27 British citizens, and 24 Indian citizens
Edited sentence: It disintegrated in mid-air en route from Montreal to London, at an altitude of  over the Atlantic Ocean, as a result of an explosion from a bomb planted by Canadian Sikh terrorists.The remnants of the airliner fell into the ocean approximately  off the coast of Ireland, killing all 329 people aboard, including 268 Canadian citizens, 27 British citizens, and 24 Indian citizens