The Problem With Finding a Motive for Murder

Investigators have a problem because it's hard to discover a motive for murder in this case, I think. They talk to family and friends who on both sides say they seem to have a good marriage. There were no incidents of violence or hostility in their marriage. But now we also have grace. She initially calls this in as a suicide. And so we have to evaluate Harry and his life. Is there anything going on within his life that would be predictive of somebody who's willing to kill themselves?