By contrast, if the owners of the sacrifice became ritually impure or died, we know that nobody will be able to eat the meat, but we cannot burn it. So, the meat is left overnight, and then it becomes the leftover sacrifice, and it can and must be burned. One cannot burn on on the first day of Passover because it is a Holiday, so he burns it on the following day.
Rabbi Yochanan ben Berokah compares the last case with the death of the sons of Aharon, where the sacrifice was burned immediately, and says that we should do the same.
Art: The Dying Man by Isidoro Grunhut