DEAR ABBY: I have a friend on social media whose brother died by suicide several months ago. She was the one who found him. They were close, and I think he was her last immediate family member. She has posted openly about how horrible this experience has been and how sad she feels. More recently, however, her posts have become increasingly bleak. She shares that she’s having trouble sleeping and she is so sad and feels completely alone because she has no more family. She gets supportive comments from her Facebook “friends,” but continues to sound hopeless. She has started ...