The gunman , 22-year-old Jacob Tyler Roberts , ran Self_motion into the shopping center wearing Wearing tactical clothing and a hockey mask and opened fire Use_firearm on shoppers and employees with a stolen Stag Arms AR-15 rifle .

For an hour `` Alliantie '' held Defending out against the more powerful `` Stag '' and was eventually compelled Action to surrender Surrendering .

It was organized Arranging by Portland NORML , the local chapter of the National Organization for the Reform of Marijuana Laws , having originated Coming_to_be from its executive director , who wanted to photograph himself in front of the White Stag sign Sign_agreement in the moments after Oregon Ballot Measure 91 took effect Change .