He can’t even take all that much solace in the fact that his counterpart is still alive and kicking in Robert Kirkman’s Walking Dead series of comic books.
The show has taken all kinds of liberties with the source material; Rick’s survival on the page doesn’t guarantee his survival on the screen.
Executive producer Greg Nicotero has spoken about how hard it was to film the scene in which Glenn (and Abraham) were brutally beaten to death, so it’s not surprising that the huge deaths stuck with Andrew Lincoln now that The Walking Dead is in the era of Negan.