kaden lum was shot at his home in bremerton , washington on march 28 .
police have not made any arrests in the two weeks since the boy 's death .
controversial illustration was published in the kitsap sun on sunday .
depicts kaden as an angel next to a devil dressed as uncle sam .
kanden 's grandfather jason trammel said the decision was ` disrespectful '
editor of the paper dave nelson has defended the move in an op-ed .