ribit,
guess you didn't read the complete article.
According to the Minneapolis Star Tribune, Oberender obtained a permit in May that allowed him to buy guns through Minnesota dealers.
Custer County Deputy Jason Kamerud told KARE that Oberender might have been able to buy the guns himself. The convicted killer’s name did not show up in a background check through the state’s Bureau of Criminal Apprehension database, according to Kamerud.
“When we ran his criminal history, it wasn’t indicated that he should not be able to have firearms,” Kamerud said.
There was no record because the BCA was never given any information on Oberender, according to officials.
"The BCA relies on entities in the criminal justice system to provide data on an individual which then populates the individual's criminal history," BCA officials said in a statement, according to KARE-TV. "There were no data submitted to the BCA about this individual. Without it there can be no record."
Oberender lived in treatment centers until he was 21, according to a 2003 article by the Associated Press. He then spent a year in a halfway house before being released, according to the article. At the time of his interview with the AP, Oberender said he was working in an auto parts store.
“I saw all kinds of psychologists and got all kinds of treatment,” Oberender told the AP. They helped him “manage my behavior and not get angry over stupid stuff,” Oberender said at the time.