Went down a true crime rabbit hole around the Jodi Arias trial a few years back and a huge component of that was this MLM company that she and her exthat she killed were a part of. Something about selling dodgy legal insurance to your family members. They brought a bunch of the heads of the company to testify in the trial and I remember one of them yelling that it wasnt MLM but horizontal marketing or some ludicrous euphemism.
Also there was an HBO series called Murder on Middle Beach about this guy investigating his mum’s death which appears to have been because of this MLM-esque dinner tables club thing his family got involved in that turned really ugly. Not such a great series but that aspect of it was quite fascinating tbh.