(b) A player shall be eligible for selection in the first NBA Draft with respect to which he has satisfied all applicable requirements of Section 1(b)(i) below and one of the requirements of Section 1(b)(ii) below:
(i) The player (A) is or will be at least 19 years of age during the calendar year in which the Draft is held, and (B) with respect to a player who is not an international player (defined below), at least one (1) NBA Season has elapsed since the player’s graduation from high school (or, if the player did not graduate from high school, since the graduation of the class with which the player would have graduated had he graduated from high school); and
If the rule says that he has to be at least one year after graduation why would he have a case.
Edit: Didnt know about the mother being sick. Small chance they make an exception. But the fact hes 19 may not change anything really.