This is a case where I am 100% going to panel by panel examine every single suspect, minor recurring, and background character expecting disguises. (Unexpected gloves, slippery glue fingers, pin cameras...) You all should too. After all, someone has just publicly announced that they are dragging a hugely famous detective who already has a rap for getting involved in BO cases (Gin almost got him killed for it), into an old BO case where one of their most important members' names showed up in a dying message. That's the sort of thing that should get the boss's or Rum's CYA attention. So why not send Vermouth to check it out? Rum himself might even appear, and given the primary suspect Asaka's androgynous appearance, they could absolutely pull off a disguise of either gender. I have been wondering since the last chapter why Gosho would choose that sort of design for Rum's character, rather than something more imposing. You'd think Gosho might have chosen a big manly face for the second to the boss to contrast with Gin and not an adult Eisuke. It's possible that Rum's appearance is a prerequisite for certain skills, like disguise.
Also seriously, is the Black Organization going around and deleting these websites? Like, has Rum actually assigned a flunky to troll the web and hack/DMCA one every time it appears? Do they hit the internet archive and google's cache's too? If they are the ones' deleting it, does that mean they figured out the dying message? I suppose the boss would be smart enough to.
If Conan knew these sites kept disappearing, wouldn't he download a copy? Or go look at the cache on his phone or on Agasa's computer? Why would he even keep visiting it more than once when it would be a risk that the BO injected a tracker and is scraping IPs? I think Gosho's age is showing here honestly.
Also it looks like Conan has deduced silver bullet or something like it must exist.
About the case itself, the one suspect pushing the elevator button with the hand holding the bulky camcorder is odd. That's a great way to damage a camcorder and isn't respectful towards the equipment. Also this case looks like it is a bunch of door activated traps used to make an alibi. Strings ahoy.