Some years back, a guy bought temp life insurance for a flight he was taking. Plane crashed, guy dies. His widow was hauled into court, either by the IRS or the insurance company, saying the guy took out the insurance knowing he would die, so either tax would be withheld, or the policy not paid.
The judge threw the case out, saying that if the guy knew the plane would crash, he wouldn't have taken he flight.
[sidebar] I was selected for jury duty in Las Vegas, and the DA came in and addressed us, thanking us for showing up. He said that many cases, where the accused is flat-out guilty, are quickly settled when he sees the jury lining up and just pleads guilty.
There were over 60 of us and I was not selected. They said that those who wanted out to see the clerk. The guy ahead of me said that he had already lost a days pay and couldn't afford another loss. He got off. I told the clerk I lived 90 miles away. He wondered why they called me in the first place and let me off. Waaay past the age cutoff now, so no longer have to worry about that any more.
Interesting... what if the guy had just been diagnosed with some terminal disease and he wanted to leave his family in good shape financially? Buy a policy and somehow make the plane crash.