I wonder if the ex-cop is senile or going into Alzheimers and undergoing a drastic personality change. So sad for the victim’s family!
That was my first thought also....early onset. Sad for all involved.
Sometimes a brain tumor will also produce crazed behavior.His long term friends say he was a decent person,so something happened to him.
Well, his forgetting to plant a gun or knife on the victim after shooting him could be taken as a sign of senility.