If my death ensures their destruction then so be it. Besides, if I die here it's not like it'd be permanent.

And also, it's evitable that he'll come after Edogawa Conan. I have no doubt that he knows I'm the kid that stays at the Sleeping Kogoro's detective agency. He also most likely knows that I recognize him. If he was watching me, as a suspect he was, he'll want to know what I wrote in the notepad.