Intraparental homicide (IPH), when one parent kills the other, leaves approximately 4,000 children bereaved each year, adding to a total of 70,000 currently in the United States. Although few studies have focused on this phenomenon, available data indicate children of IPH suffer short- and long-term mental health consequences, including post-traumatic stress disorder (PTSD). Prior research also indicates that guardians, often family members under stress themselves, do not know how to help the children. No interventions directed at guardians of child survivors of IPH are found in scientific and clinical literature. Use of a specialized Web site called an Interactive Healthcare Communication Application (IHCA) has been found effective in treating multiple health conditions, including breast cancer in women and asthma in children. This study aims to refine an IHCA Web site for use by guardians of child survivors of IPH, to determine the safety and effectiveness of this Web site, and to determine how it is used by targeted guardians.