Yes, different circumstances but the principle is the same.
Anyway, the old boy has been bailed pending further investigations and hopefully no further action will be taken against him.
Cases like this are emotive and while folks say "great, the guy got what he deserved", its the old boy that has to live with the fact that he killed someone. He's not a Police officer shooting a suspect, he's not a soldier shooting another soldier in war, he's a seventy eight year old man who was defending his wife and his property and ended up taking a life.
Sadly, no winners in this situation.
JF