DDad passed away yesterday.
We have been going through the process of informing family and close friends and told most people yesterday but there are some who are elderly who we haven't yet been able to reach. DDad is also moderately well known for something so the national press will probably run an obituary when they are informed.
Given this, AIBU to think a relative should not have posted to social media about his passing before checking with his immediate family that it was ok to do?