Experience of joy and happiness and love and satisfaction? That becomes surely hellish boring when there is no fear of sorrow! Is that really the Paradise? Could be the hell too!
Only the perfect balance creates the pure blissfulness…and that happens only when all are dead! The esoteric-guy would perhaps call it: The absolute Harmonic!!! Easy way for the Killer? No no, he would risk to come in Hell for an eternity (you could even say: He would sacrifice himself for all humans). And NO, Hitler wanted other things! You would prefer to talk walk in the woods? That’s ok! But you must die nevertheless sometime…so, why not now??? :)=)