I think BIL is trying to protect ST and MT, but it's making everything worse.
He said that this call happened years ago, it was a woman who was drunk and having a "mental health issue". Then, it was a bad reaction to edibles. Now, the public is learning (via public records) that possibly another woman was living in the home temporarily.
I'm wondering if the BIL even knew about the woman living with them temporarily. There might be things ST and MT kept private.
I think BIL's heart is in the right place and he has good intentions, but he's in way over his head. They need to hire a spokesperson.