A police investigator walks past flowers left for victims outside of Oikos University in Oakland, Calif., Wednesday, April 4, 2012. Six students and a receptionist were killed and three others were wounded when the gunman went on a shooting rampage Monday morning at Oikos University, an Oakland school founded to help Korean immigrants adjust to life in America and launch new careers. (AP Photo/Jeff Chiu)
Mourners attend a memorial service at the Allen Temple Baptist Church Tuesday, April 3, 2012, in Oakland, Calif. Several hundred people gathered Tuesday night for a prayer vigil for the victims of Monday's shooting at Oikos University, a small Christian school in Oakland. (AP Photo/Ben Margot)
Police inspectors search for a weapon in the water at Martin Luther King Jr. Regional Shoreline in Oakland, Calif., Tuesday, April 3, 2012. A South Korean-born student expelled from a small Christian university and upset about being teased over his poor English skills opened fire at the school, going from room to room in a rampage that left six students and a secretary dead, police said Tuesday. (AP Photo/Jeff Chiu)
Law enforcement officers leave Oikos University following a school shooting in Oakland, Calif., Monday, April 2, 2012. A gunman opened fire at the school, killing at least five people, law enforcement sources close to the investigation said. (AP Photo/Noah Berger)
An Oakland police officer walks outside of Oikos University in Oakland, Calif., Monday, April 2, 2012. A suspect was detained Monday in a shooting attack at a California Christian university that sources said has left at least five people dead. (AP Photo/Noah Berger)
Bodies lie covered on the grass as Oakland Police work near Oikos University in Oakland, Calif., Monday, April 2, 2012. A suspect was detained Monday in a shooting attack at a California Christian university that sources said has left at least five people dead. (AP Photo/Noah Berger)
Oikos University student Young-ung Cho, from South Korea, looks toward the front of the school in Oakland, Calif., Wednesday, April 4, 2012. Six students and a receptionist were killed and three others were wounded when the gunman went on a shooting rampage Monday morning at Oikos University, an Oakland school founded to help Korean immigrants adjust to life in America and launch new careers. (AP Photo/Jeff Chiu)
This photo released by the Alameda County Sheriff's Department shows One Goh, 43, who is suspected of killing seven people at Oikos University in Oakland, Calif., on Monday April 2, 2012. (AP Photo/Alameda County Sheriff's Dept. via The San Francisco Chronicle)
Oakland Mayor Jean Quan speaks during a memorial service at the Allen Temple Baptist Church Tuesday, April 3, 2012, in Oakland, Calif. Several hundred people gathered Tuesday night for a prayer vigil for the victims of Monday's shooting at Oikos University, a small Christian school in Oakland. (AP Photo/Ben Margot)
A police investigator walks out of Oikos University in Oakland, Calif., Tuesday, April 3, 2012. A South Korean-born student expelled from a small Christian university and upset about being teased over his poor English skills opened fire at the school, going from room to room in a rampage that left six students and a secretary dead, police said Tuesday. (AP Photo/Jeff Chiu)
Investigators examine bodies outside Oikos University in Oakland, Calif., following a shooting on Monday, April 2, 2012. A gunman opened fire at the Christian university, killing at least seven people and wounding three more, before being captured hours later at a shopping center in a nearby city, authorities said. (AP Photo/Noah Berger)
By GARANCE BURKE 04/ 3/12 06:56 PM ET Associated Press