DEAR ABBY: My elderly father’s dearest friend committed suicide yesterday. He shot himself in the head. The family wasn’t even aware that he was depressed. Dad has lost three wonderful friends this way in recent years. He’s heartbroken thinking that his buddies were secretly suffering. According to the Centers for Disease Control, the rate of suicide for men 70 and older in the U.S. is more than double the overall suicide rate. Yet, with all of our suicide prevention efforts, this high-risk group seems to be ignored. How can we help prevent these tragedies? What are the signs of depression in ...