4. Going to Shul for Kaddish:

A son who is an Onen over the passing of his father or mother is to go to Shul, by every opportunity, in order to say Kaddish on their behalf, even though it is still prior to the funeral, as explained in Halacha 8C, see there in length! He, however, does not Daven or answer Amen to any blessing as explained in Halacha 8D!