LOL
Just forget doing Old Lace in front of poor Alexander Goth - you have to cause deaths on YOUR lot.
I won't download gallery sims, too much of hassle. Will make 10 random grannies and grandpas in CAS and then rocket woohoo. >:)
But if the achievement was to download "celebrity" sims and kill 'em, I'd do it! First I'd let them eat a day or two to get fat like hell, then I'd age them up so they become what they trully are. Rotten tomatoes.
Afterwards would post pics where my sims do the happy dance when those abominations die.