Must have been a impulsive act of violence. The doctor put no thought into the murder at all. The story is sketch but I assume the wife survived and turned him in. Was there a trail cam?
She probably didn't tell them his age, given the circumstances ...
The article says she is in serious condition but was able to tell police that it was her 46 ywar old husband that did this to her.
I disagree. There are several of these cases that have happened here in the US.
https://www.nbcnews.com/news/us-news/colorado-man-sentenced-life-pushing-wife-death-cliff-n476726
https://www.nbcphiladelphia.com/news/local/new-jersey-wife-cliff-push/25863/
https://people.com/crime/oregon-man-pleads-guilty-girlfriend-cliff-murder/