Official: Attack Suspect Didn't Show Violent Signs The suspect in a shooting rampage at a California Christian university that killed seven people was on campus because of a tuition dispute, but previously had not shown any signs of violence, the school's founder says. One Goh became upset when administrators refused to grant him a full tuition refund after he dropped out of the nursing program last fall, Jongjin Kim told The Associated Press Friday. He said that Goh came to campus Monday morning looking for the person in charge of handling tuition. Goh hadn't exhibited violent tendencies before that and seemed "normal," Kim said. Goh is charged with seven counts of murder and three counts of attempted murder with a special circumstance allegation that could make him eligible for the death penalty. He has not entered a plea. Police said they had located a .45-caliber semiautomatic handgun they believe was used in Monday's attack. The weapon was found in the shallow waters of a tributary of San Leandro Bay, about a half-mile from the school. Its serial numbers match a gun purchased by Goh, city spokeswoman Cynthia Perkins said. Police say Goh may have been seeking multiple targets before beginning his rampage, killing six students and a school secretary while wounding three others. Kim, now the school's dean, was on campus at the time and believes Goh shot his victims at random. Numerous administrators have said that Goh grew angry during one of three long meetings with officials over a financial dispute. Goh became upset because officials would not fully refund his tuition for the nursing program, Jaehoon Moon, chief operating officer of Oikos University, told KGO-TV. The amount in dispute was $4,000 to $6,000, according to Moon, who said officials had offered partial reimbursement. During the meetings with school administrators, the 43-year-old Goh also complained that he didn't get along with his classmates, so officials offered to transfer him to another classroom, Moon said. They believed the issue was resolved and he would restart classes, but police say an angry Goh returned to the school on Monday. Nursing program director Ellen Cervellon previously said she met several times with Goh over the tuition issue and that he said students had been picking on him. Police have said Goh was targeting a female administrator when he went to his former school, and opened fire when he learned she wasn't there. Cervellon told the AP that she believed she was the intended target. But Police Chief Howard Jordan later said the main target was a woman who no longer works at Oikos. At the Oikos campus, workers cleaned the building behind police tape Friday morning. A banner draped at the school's front entrance read, "In Memoriam, Forever United In Life, April 2, 2012." It listed the names of the victims, followed by the words: "We Will Remember. We Will Prevail. School officials moved a growing makeshift memorial from the side of the school to the front steps and added seven framed photos of the victims. A string quintet then performed in the first of a series of concerts school officials say will occur at noon through April 30. Lucas Garcia, 33, who teaches English as a second language at the school, later read a statement.