True. I didn’t consider the fact that 813Smith might be as culpable as or more culpable than his wife.Where does it indicate that he would be confessing to a crime he didn't commit? The possibility does exist that they were his drugs rather than hers. I could see it either way to be honest.
“Taking the fall” typically means taking the blame or punishment for someone else for something you didn’t do - which is how I understood it - but it can also mean being the one (of another or others) to take all of the blame or punishment for something you and another or others did.