Driving around with a ginormous assault rifle laying on the trunk of your car = embarrassing.
Walking around with a tiny pocket knife in your hand = deadly.
...in reference to this, compared with this.
(In fairness to SPD, I think the department handled the aftermath of the Ian Birk case more or less correctly...he's not an officer anymore, and the bar for criminal charges against an officer for committing homicide in the line of duty is very, very high. But still, the choice of words here is...unfortunate...)