I do rather believe that he did make himself vulnerable to dying early via less than natural means. He didn't necessarily expect it to be by Blackwood tree though. Poison he possibly thought would be his untimely end. *snickers*

Hmm If the nephew and his new husband were part of the murder then it's quite possible that they did survive the car accident while on the road to Tammy's house which is through the Blackwood Forest. *evil laughter*