No. MAB hasn't allowed Katherine Chancellor to have an on-screen life with her family. She has kept Kay away from both Jill & Murphy for years so she can use Katherine to prop her favorite geezer F_cker McBalls.
I'm so sick of watching F_ucker McBalls bully & boink woman, then fight with Kay.. I miss the Chancellor family stories with her real family and hope they find out that Tucker is a fake..
No he didn't die - The Actor that plays him, Michael Fairman decided that Scientology was not for him. He revealed secrets of the cult in an interview and has been on the show less and less ever since the Grand Poobah or whatever it is that runs the quasi religion kicked him out.
Unfortunately for Michael a couple of the high profile women on the show are Scientology members.
Google Michael Fairman and Scientology - It's a fascinating story.