Arlington's dog mural

I hadn't paid much attention to the controversy over a Shirlington dog mural, but am being asked about it, so here's a couple of pieces on it -

 

http://washingtonexaminer.com/local/virginia/2010/12/arlington-doggie-mural-heart-federal-lawsuit

http://voices.washingtonpost.com/crime-scene/spencer-s-hsu/lawsuit-over-arlington-dog-mur.html

 

Anybody know who the artist is?