The death of famed actor and comedian Robin Williams has once again brought to light the issue of depression and suicide. Williams was found dead Monday morning in his California home. Authorities say Williams committed suicide. Mandy Grella, a licensed clinical social worker at St. Vincent Hospital in Indianapolis, says there are warning signs that a loved one may be depressed or suicidal. Grella says if you believe someone you know may be suicidal, you should take it seriously and start asking that person questions.