Good news for your cousin Bill and the advice to raise awareness is solid advice. However, important to be clear that the indicators for genetic disposition to prostate cancer are a) being diagnosed young (in your 50s or younger) b) having a father or sibling diagnosed young c) having a parent, grandparent or siblings diagnosed young with breast cancer or other hormone-related cancer. Less than 5% of prostate cancers are thought to be genetic; environmental factors such as the food you ate as children, the water you drank, the air you breathed and the lifestyle are thought to be much more significant in terms of familial or geographic clusters
In fact, about 60% of men in their 60s have some cancer in their prostate although many will never know or need treatment. Many doctors choose not to have PSA tests, including some urologists.