Calling it now: Derol and Wagner are brothers.
Wagner is a good, hard working detective because he’s a complete dork for mysteries. Harlan’s, Doyle’s, Christie’s. He’s been following Blanc since he met him and definitely has a signed photo of them together. Brings up how he got to work with him at every family gathering because holy shit he met Benoit Blanc?! And helped him solve a case?!
Meanwhile Derol is higher than a kite at the dinner table frowning before mentioning that he smoked with that guy at Miles’s. Takes him a moment of his brother questioning him and pulling up WAY too many Google images, but he becomes certain that the blonde guy his baby brother (10 minutes counts) is obsessed with was the chill dude he was smoking with as the house burned.
And all the while Wagner is quietly losing his shit because it was bad enough when Derol’s idiot friend Miles became… Miles Bron, but then the guy gets to smoke and hang out with Benoit Blanc, in Greece al like it’s nothing?! And worst of all, Derol can’t even tell him about the case because he was off chilling on his own the whole damn time.