
All of you blindly defending the main character just because they're the main character are forgetting that the ML does not know what you know. As far as the ML knows, this man is a drug addict who is a known liar. All of the evidence points to him being crazy and unreliable. His brother appears to be an upstanding respectable man.
The main character has done nothing to change the ML's perception of him. He has collected no evidence of any of this. He doesn't take screenshots or record his brother. He doesn't write anything down. He doesn't journal even. It's very hard to believe someone when they appear to be completely unreliable.
The ML even did due diligence. He looked into all of the examples he was given and there was a logical explanation for all of them.
We know the main character isn't lying because the story is told from his point of view and you're using that judge the ML completely unfairly.
I would have kicked him out of my house the second that article and the evidence in that article came out about him doing drugs. Most of you would have done the same.