Here's a thread to keep this seperate from the murder investigation threads, and to provide somewhere to collate information gained pertaining to the mystery of the mysterious flashlights, basement, and islands as a whole.

#1 "Backup"

#4 Basement combined islands

#6
[i]Hades is sitting at a bar, pounding back beer after beer. He begins drunkenly singing sea shanties, rocking back and forth in his bar stool.

Nearby, in the booths, a guy you don't recognize leans over to his friend and comments on "that guy's superhuman liver". In the next booth over, someone puts down the newspaper they were reading, and perks up upon hearing this. Their face is blurred out, but they pull out a smartphone, and begins texting something, before hitting send and putting their phone back in their pocket.

They get up and leave, and immediately, another person takes their place at the booth, their face also blurred. They are wearing a black and white coat. For the rest of the night, you see this person watching Hades intently.