The gunman accused of shooting and killing seven people at a religious school in Oakland, Calif., will be arraigned today, according to reports. 

(Creative Commons)

One Goh, held at Alameda County jail on charges of murder and kidnapping, was possibly angry about being expelled from Oikos University, a Korean Christian school. 

His killing spree began Monday morning when he went looking for a particular administrator. When he could not find this person, he began shooting.

Reports describe Goh as a doting son who was also capable of extreme anger, and some say he was "teased" and "picked on" at school. (CNN)

The Contra Costa Times describes Goh as a "troubled" 43-year-old man, who "saddled with debt, failed marriage and a crumbling business," came to California from Virginia to find a new life in 2009. His fortunes did not improve.

According to another Contra Costa Times report, police have a confession, but are still putting together the pieces of what happened Monday and why. 

From CCT:

The 43-year-old suspect told police he wanted to get back at the school and to inflict pain, police Chief Howard Jordan said. There are conflicting reports about whether he was expelled, but the suspect left the school in November and told investigators he wasn't satisfied with the class he was taking. He was also upset with some classmates because he felt he was being teased -- particularly about his English skills -- and treated differently by them. People stopped talking to him and wouldn't even acknowledge him at times, he told investigators.

Police are looking for the murder weapon, which police say the gunman through into the bay, according to the Los Angeles Times.  

Memorials for those killed took place Tuesday night at Allen Temple Baptist Church in Oakland and the Tibetan Community Center in Richmond. "This is a tragedy, but we all must unite as a community and teach compassion for all human beings," said Tenzin Tsedup Wangdu, president of the Tibetan Association of Northern California, according to the San Francisco Chronicle.

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