Uncanny X-Men Vol 1 #303

While the X-Men were away in Dallas, Jubillee and Kitty have been watching over Illyana. Xavier and Moira did all they could, but Illyana died of the Legacy Virus anyway. Later the team returns home, and Colossus shows no reaction to the news. Jubilee hides in the ready room, but is found by Jean Grey, who comforts her.