Original sentence: The Montejurra Massacre, or less commonly, Montejurra Incidents is an event of Neofascist terrorism in Spain that took place on May 9, 1976, when two men were killed and other three seriously wounded by right-wing gunmen supported by the national security services, at the annual Carlist Party celebration that was held in Montejurra, Navarre, Spain
Edited sentence: The Montejurra Incidents, a part of Neofascist terrorism in Spain, took place on May 9, 1976, when two men were killed and other three seriously wounded by right-wing gunmen supported by the national security services, at the annual Carlist Party celebration that was held in Montejurra, Navarre, Spain