Losing a close person has profound impact on life and sudden death involves no possibility for preparedness. Every year thousands of family members suffer from suddenly losing a close person following cardiac arrest. In case of emergency family members can be forced to witness and preform CPR. Cardiac arrests are in most cases fatal. The loss of a close person often has a significant impact on both physical and psychological health. To date, few studies have been published in the context of bereavement following sudden death by cardiac arrest. Lacking support makes it hard for family members to cope with the loss. Further research is needed to identify family members in risk of complicated grief and to develop support interventions.