Clackamas County Sheriff's spokesman Lieutenant James Rhodes said the shopping centre remained closed while it was searched following the shooting.
More top news
A group of soldiers has broken an Antarctica record by becoming the first all-female team to cross the continent using only muscle power.
Gunmen have attacked the Intercontinental Hotel in Kabul with casualties feared.
The Grammy-winning singer posted a picture of the two on his Instagram saying the two got engaged right before the new year.