Gravity Falls has a case of a serial killer on the lose his been killing popular people or celebrities. Goobert Alexander Pines aka.Dipper a normal scientist. age : 29 Mabel Ariel Pines a detective cop. age : 29 William Cipher aka.Bill the assistant cop of Mabel. age : 34 with the three helping each other to find this killer and bring him/she to justice.? or is one of them been pulling the strings? ~~~~~~~~~~~~~~~~~~~~~~~~~~ if you know who is the killer please comment...I'll continue writing this until you find out who the killer is it could be anyone and I mean anyone...remember in Gravity falls Trust No One