Technically yes but you see him in the final episode happily existing in the light shop. The most distressing part is the dog is visibly injured throughout the previous episode.
Guess it depends on your tolerance level. Pretty mild- blood on clothes, faces, heads. There are some pretty graphic depictions of people's limbs bending the wrong way and snapping.
Kind of. A dead person is being prepared for the morgue but can still speak and has a conversation with the embalmer before being locked away in the morgue, it's unspecified if they're a ghost/spirit/etc. Not technically buried either.