K.S.A. 59-507: No spouse, child or issue of the decedent.

If the decedent leaves no surviving spouse, child, or issue, but leaves a surviving parent or surviving parents, all of his or her property shall pass to such surviving parent, or in equal shares to such surviving parents, but if the decedent is an adopted child such property shall pass to his or her adoptive parent or parents in like manner including a natural parent who is the spouse of an adoptive parent.