...of being a time-traveling serial killer! Who's even heard of this 'Ewer Killer'!? Despite his arguments, though, Conan, handsome besuited barbarian that he is (the suit definitely not being stolen from a noble), sees through Gus' lies! His villainy must be stopped! (2/3)

As a note, this accusation rides on the idea of Gus being from 250 or so years in the future, and thus having a time machine so he can escape to the future again. (3/3)