I'm not sure I trust Connor entirely...
I will use a tricky fake name, and maybe catch him off-guard.
*Knock on Connor's front door*
Jonathan: Hi, I'm Kevin Rivera. I was told you knew Rich.
Connor: Uh, what?? Rich, I guess, it's been so long, dude.
Jonathan: I'm just looking for my nephew. Can I ask you a couple questions?
Connor: I'm busy. I've got work soon, I can talk for a minute.
Jonathan: Thank you. So, can you tell me anything about the day he went missing?
Connor: Jeez, I haven't talked to him in so long. I don't even remember the last time, man.
Jonathan: Oh, I was told you were best friends with Rich...
Connor: What? Who's telling you this stuff? I barely knew the guy.
Jonathan: That's so sad... The police must have it all wrong. Sorry for wasting your time, Connor.
Connor: Yeah, sorry. I got to go.
*The door shuts... walk back to your car*
Connor was quite nervous...
Suspicious... that's all I can say.
Another mystery added to this tangled web...