Charlie just listens, keeping back his questions to the end, until the last two deaths happen to be a one-two fucking gut punch. Arthur can't be surprised that they both make his eyes flicker, though he still lets Arthur finish before curiously angling his head and calmly, very calmly saying again:

"Alright."

In a tone that suggests the list was interesting.

He breathes in. Continues:

"Wanna elaborate on Sarah Cummings for me?"