I have close experience with LEOs tying to pin something on a low IQ person. Years ago the police questioned my learning disabled little brother for 6 hours (telling him he didn’t need an attorney) until he admitted to a burglary he did not commit.
I just watched Making of a Murderer on Netflix. Its a true story.. The cops, DA, & judge totally railroaded the defendant, especially using his 73 IQ idiot nephew against him when it was obvious the kid didn’t know a damned thing.