http://www.dailymail.co.uk/news/article-3716521/Seattle-house-party-shooter-depressed-break-just-bought-AR-15-week.html

they always deflect any sense of personal responsibility

"Dave Wakeman, who is listed as one of the founders of Skirmos, told Daily Mail Online the company was shocked by the shooting.

'Allen Ivanov has worked with us and been our friend and colleague for a number of years,' he said.

'That said, this event is another example of our need for gun reform in this country.'

'No person should have the opportunity to possess a firearm that can discharge a weapon 20 times in short succession.'

'The time to take action so that senseless deaths like this don't continue to be the norm in our country has passed. We absolutely need to take immediate action on this issue."

Wow!  I used to live about 5-10 minutes south from there.  Depending on what part, that's a pretty nice area, or at least it was.  Not that it really matters in terms of vulnerability or anything like that. 

WA was steadily improving in terms of gun laws as they recently made suppressors legal there.  Though I've heard that there has been a big push in the last couple of years to change that.  As discussed in another thread, seemingly coming from the more urban and affluent areas of the state which are blue.   

In 2014, Washington State passed Universal Background Checks for all firearms transfers including private transfers.

The type of weapon used is irrelevant, since he didn't shoot 50 people in rapid succession..

So, what we have again is mental illness, however noticeable by friends and family, failed to be reported to the authorities.  People say, "If he had been required to attend a mental health exam, they would have seen how depressed he was."

That's called abdicating your responsibility, expecting the system to figure out who is mentally ill through some test.  The system is flawed.  Do not depend on the system.