Jesus’ Mercy is unfathomable but if they do not seek it they will not receive it.Jesus said to love your enemies. Does this mean that I must pray for the repose of the soul of Osama bin Ladin? I find this to be extraordinarily difficult but if I must do it to achieve everlasting life, I will.
You can pray for the Holy souls in Purgatory, just don’t sing and dance in the street because he is dead. This is not good for you and may infuriate the rest of the fanatics.
Also pray for the conversion of sinners.