OAKLAND -- Authorities said early Thursday that a former administrator was the intended target of Oikos University gunman One L. Goh, not the school's nursing director who had said she believed she was the person sought in his killing spree this week.

The female administrator was no longer employed by the school when the 43-year-old Goh went on a shooting rampage Monday morning, killing seven and wounded three at Oikos University, a small private college in East Oakland.

The administrator was also involved in the financial issue that purportedly enraged Goh: He had tried to get back $6,000 in tuition after he left the vocational school, officials said.

Police have contacted the woman but have declined to release her name out of concern for her safety.

Police added Thursday that they were investigating the possibility that the gunman had multiple targets that he intended to kill in his rampage.

The development changes the narrative of a story that ran in this newspaper Thursday that revolved around Piedmont resident Ellen Cervellon, the Oikos nursing director.

"In talking to several of the students and faculty who were there, I think he was looking for me. I have that weight on my shoulders, and I don't know what to do with it," Cervellon told The Associated Press on Wednesday, her voice quavering.

Police said they made contact with Cervellon after seeing the AP story and that many details about events leading up to the shooting remain unclear.

Cervellon said Goh dropped out of the nursing program at the tiny private school around November but returned numerous times to ask her for a full tuition refund.

Goh got angry when she told him the school could not refund all his money because he had been enrolled for nearly half of the program, she said.

Police have said Goh was seeking the unnamed administrator when he took BART and a bus to the campus Monday. The front doors were locked, as they typically are during the day, so he got in through a side entrance students often use.

Goh entered the administrative office looking for his target, not knowing she left the school late last year. The only person in the office was receptionist Katleen Ping. He forcibly herded her down the hallway into a classroom filled with some of his former classmates and others he hadn't seen before.

That was when he pulled out a .45 semiautomatic pistol and ordered the students to line up against the wall, sparking a scramble, followed by him opening fire. He reloaded at least once during the melee -- prosecutors say he brought at least four magazines with him.

Afterward, he fled in a victim's car to Alameda, where he surrendered to police. Police continued their search for the gun Thursday in the Oakland Estuary.

By the end of his rampage, the dead included Ping, 24, of Oakland; Judith O. Seymour, 53, of San Jose; Lydia H. Sim, 21, of Hayward; Sonam Choedon, 33, of El Cerrito; Grace Kim, 23, of Union City; Doris Chibuko, 40, of San Leandro; and Tshering Rinzing Bhutia, 38, of San Francisco.

Injured were Dawinder Kaur, 19, of Santa Clara, who was shot in the arm, Ahmad Javid Sayeed and Grace Kirika; Sayeed's and Kirika's ages and hometowns were not immediately available, nor was the extent of their injuries. All three have since been released from the hospital.

Goh was charged Wednesday with seven counts of murder, three counts of attempted murder and a host of other felonies that will make him eligible for the death penalty.

Police initially were told Goh had been expelled from the school but said Wednesday he had actually left voluntarily.

Cervellon, who was teaching a class at Cal State East Bay when the shooting occurred, said "he was never forced out, he showed no behavioral problems, and he was never asked to leave the program," she said. "He decided on his own to leave the program."

But the husband of one of the slain students said Goh's behavior had been brought up to administrators. Efanye Chibuko said his wife Doris, the class president, complained about Goh's belligerence toward students and staff.

"The school was aware of his violent tendencies," he said.

During previous meetings with Cervellon, Goh also said he felt his classmates were picking on him at the school, which was founded to help Korean immigrants adjust to life in America and launch new careers, according to Cervellon. Goh is a native of South Korea who became a U.S. citizen.

Goh was born with the name Su Nam Ko. But in February 2002, he filed a petition with the Circuit Court in Fairfax County, Va., to change his name to One L. Goh, according to The Associated Press. The reason he listed was that he did "not like my current name because it sounds like a girl's name."

Staff Writers Matthias Gafni and Matt Krupnick and the Associated Press contributed to this story.