I tried to compare some of the pics from
www.forsteven.com and the two pics of the bank robber posted in the online news along with the general physical description.
as for the description, it is the right age and height. I'm not sure where they came up with the weight of 150 as the robber looks like he is full faced and I would not call him slender. so my guess is that if the robber is really 5'9", the 150 lbs is probably an understatement. hair color is subjective (where does one draw the line between blond, dirty blond and light brown and color can be changed.
the robber and Steven don't have very long necks and the robber seems to have a smile.
I mean it is a long shot, but there is enough similarities that I as a casual observer cannot eliminate.