My sister took her life on the Fourth of July. She was 56. It was the 2nd anniversary of my Mother's death. My nearly 86 year old Father is fairly distraught. There is a lot to unpack here, but the short version is this. My parents divorced when we were young after he had a brain tumor removed. He left and never returned. That started the emotional pain for my sister. She was hit by a car in her twenties, and had chronic pain ever after that. She had three failed marriages, but was always close to my Mother, and cared for her to the end. When she lost our Mother, she lost her purpose, and was left with only pain. Just a couple of hours before she took her life, she called my Father. He thinks he missed something, that he could have saved her. How do I let him know it's not his fault, and that there was nothing he could have done? She was over a thousand miles away, and woke him up with the call. I could really use some advice on how to help him with his grief.