My best friend, no longer with us, had a massive cocaine problem in his adult life. One night, while really messed up and broke (and wanting another high), he tried robbing a convenient mart. He entered with no weapon, so he took his finger and put it in his pocket trying to make it look like a gun. The clerk obviously knew he had nothing, reached behind the counter and grabbed a "real" gun. He kept my buddy there for the police. He went to jail for a while.
Drug addiction and being broke are deadly combinations, and then mix in some mental health issues on top, and you have an inferno. Beyond sad.