I work in senior housing and unfortunately this occurs often and can be very traumatizing the first time. Most hospices/hospitals have grief counselors available for these situations. She will definitely need more than nails, bath bombs and a day off. Perhaps she can utilize her sick leave for a few days to adjust to what she found, but it will stick with her for a while. Maybe not send her into units alone or better yet, when tenants are not seen or heard from over several days, I would call the non-emergency police/fire department number to conduct a health & safety check, so they find the tenant not your staff.