Yes. Because the Shadow King as we all know REALLY WANTED and DESIRED Storm so much he can taste her Rich Blackness.
Think about it. Every time SK(Shadow King) and Storm butted heads Storm somehow eludes him or bested him or out right resisted him.
IF it's not HIM? It's
Cassandra Nova that Woman has been after Storm as well. And if she can kill Jean it would be like killing Two Birds with One stone. But my Money is on Shadow King...in fact I believe it is him.