Freezer Bunny (new event grim reaper) Where is it?

I picked a new sim to do this event and when it came to the part where it say summon the grim reaper. Well the Reaper would not come. So I a idea to kill someone walking pass my house. Well silly me just shift click to kill by rabbit and it killed my sim and he had the reward freezer bunny in his inventory. He died I quit the game and came back. Now I can not find the bunny!! Also can we not just by it in the build buy mode