Some people are foolish enough to believe making a big public display of "grief" makes up for what despicable human beings they are, and were, when the dead person was alive. Pretending to have a heart and give a fuck about someone they treated like shit when the person was alive, - kidding themselves into believing they might somehow be able to avoid the inescapable full-circle karma-fuck that no doubt, awaits them.
Projeto Coisas Boas Acontecem #coisasboasacontecem
The best response to a narc is no response! If you must respond, show no emotion... This can be very difficult, but it will deprive him of what he wants most... A narcissistic payoff from your reaction/response.