Original sentence: 28 of the guardsmen fired a 13-second fusillade of between 61 and 67 shots at the unarmed students.A group of seventy National Guard troops advanced on the hundreds of protesters with fixed bayonets in an attempt to disperse the crowd.Despite this, an estimated three thousand people gathered on the university commons.On Monday, May 4th, a protest was scheduled to be held at noon, and University officials attempted to man the gathering, handing out 12,000 leaflets stating that the event was cancelled.Some students began to pick up the tear gas cannisters and throw them at the National Guardsmen.The Guardsmen testified that they were in fear for their lives.The question of why the shots were fired has been widely debated.The shootings killed four students and wounded nine
Edited sentence: 28 of the guardsmen misunderstood an order and fired a 13-second fusillade of between 61 and 67 shots, killing four students and wounding nine.A group of seventy National Guard troops advanced on the hundreds of protesters with fixed bayonets in an attempt to disperse the crowd and restore peace.An estimated three thousand people gathered on the university commons.On Monday, May 4th, a protest was scheduled to be held at noon, and University officials attempted to inform the campus community that the gathering was banned, by handing out 12,000 leaflets.The rioters even began to pick up the tear gas cannisters and throw them at the National Guardsmen