Provided By: The Associated Press Last Modified: 10/9/2006 2:05:55 PM JOPLIN, Mo. (AP) -- A 13-year-old student wearing a long, black trenchcoat and carrying an AK-47 and several clips of ammunition walked into his middle school Monday morning and told two administrators, "please don't make me do this," officials said. The boy shot once into the school ceiling before two administrators talked him out of continuing what police said was a well-thought out plan. No one was injured, and the boy was taken into custody. The seventh-grade student, who was not identified, pointed the gun at two students and Principal Steve Gilbreth and Assistant Superintendent Steve Doerr and asked them, "not to make me do this," said School Superintendent Jim Simpson. The 13-year-old male student then raised the gun and fired a shot into the ceiling, breaking a water pipe. After firing the shot, he said again, "Please don't make me do this," Simpson said. Doerr told the student, "You don't have to do this, there is another way," Simpson said. Doerr and Gilbreth persuaded the student to leave the building, where he was confronted by two police officers who had their weapons drawn. The student then dropped the rifle, Simpson said. "It was a very close call," Simpson said. Joplin police Officer Curt Farmer said officers found a note in the student's backpack indicating that he had placed an explosive in the school, which has about 750 students. The backpack also contained military manuals, notes on how to build an improvised explosive device and detailed drawings of the school. The student also was wearing a T-shirt over his head with holes cut out for eyes, Farmer said. "This was quite well thought out," Farmer said. "He had been planning this for a long time." Farmer said police believe they know where the student got the weapon but declined to disclose those details. He said it was not uncommon for people in the area to own assault weapons. Students in the school were moved to nearby Joplin Memorial Hall. All but five of the students had been taken home by noon. The Joplin Globe reported that police were searching an area home, and that officers were seen leaving the house carrying two rifles. Police roped off a half-block area around the home, but would not reveal specifics about the search. The Missouri State Highway Patrol also had arrived at the middle school about 11 a.m. with bomb-sniffing dogs and officers were searching the third floor of the school is under way. School officials said they could not discuss a motive and did not have access to the student's records until the search was completed. Simpson said authorities did not know whether others were involved in the possible attack. The shooting happened about 7:45 a.m., 10 minutes before school started. Deron Moore, an eighth-grader, said the school was locked down and an announcement was made that someone with a gun had come into the school. "A lot of the kids were scared," Deron said. "After they said on the intercom that there was someone with a gun, I kind of went into shock." A mother who was dropping her son off at the school didn't let him get out of the car when she saw Gilbreth "waving crazily" as police cars pulled up behind her. Blake Spivak, former advertising director for The Joplin Globe, sat in her car with her son, Cooper, as Gilbreth walked back into the school flanked on either side by police carrying guns and dressed in flack jackets. Spivak said Gilbreth later came out and gathered the students together to let them know the student with the gun had been arrested. "He assured them that their friends were safe and that no one had been hurt," Spivak said. "The principal seemed very much in control and in command of the situation." Joplin, which has about 40,900 residents, is in southwest Missouri, on the Kansas border about 140 miles south of Kansas City. Schools across the country have been on alert after three deadly school shootings in three states in the span of a week, and several schools have been locked down or closed entirely during the past two weeks because of threats. In Pennsylvania Amish country Monday morning, church bells tolled across the region in remembrance of the five young girls who were shot to death at their one-room schoolhouse one week earlier.