Shick was subsequently killed in the ensuing gun battle with police.
The shooting and its aftermath consumed the city for several days; in the first few hours, people frantically tried to locate friends and loved ones in Oakland.
And, there is still very little known about shooter John Shick.
We want to know: What do you remember of that day? Have the events of that day changed your outlook -- on guns, or workplace safety? Tell us your thoughts in the comments section below. We may use the comments in a future print article.