Dear Boss letter
message received in 1888, which claims to have been written by the serial killer now known as Jack the Ripper
en-US/ˌdiɹ ˈbɑs ˈlɛtɚ/
en-GB/ˈdɪə ˈbɒs ˈlɛtə/
message received in 1888, which claims to have been written by the serial killer now known as Jack the Ripper