The primary "paper" featured in this episode is a found in the pocket of Hideomi Nagato.
The detectives, including Conan and Heiji Hattori (Harley Hartwell), use this paper to verify Hideomi's involvement in the ongoing murders at the Nagato estate. Detective Conan (Dub) Episode 77
Richard Moore (Kogoro Mouri) is hired by the patriarch of the Nagato family to find his first love, but the investigation quickly turns into a murder mystery when a family member is found dead. The primary "paper" featured in this episode is