Letter Scraps are a collectible tied to the Mystery of Leonora Johnson. There is a total of 50 Letter Scraps hidden throughout San Andreas. They are very well concealed so it is unlikely you will find any through general game play. You can start collecting them from the get go, you don’t have to meet Omega like you do with the UFO Parts. The letters look like little pieces of paper on the floor and when nearby you can hear the faint sound of a piece of paper moving in the wind. As soon as you pick one up it will save, no need to pick it up again. Be careful when collecting them though not to miss any out as there is no way to check which ones your have missed!
As soon as you have all 50 switch to Franklin and go to the “?” near the golf course. You will confront the murderer and then you must give chase. Chase after him then shoot him whenever you get the chance. Doing this will complete the mission and you’ll be awarded the A Mystery, Solved Trophy / Achievement.
Letter Scraps Map
Locations of Letter Scraps are listed on the GTA 5 Map.
Use the GTA 5 Interactive Map
The GTA 5 Interactive Map is a Google-style map anyone can edit or add too. It includes Collectibles, Letter Scraps and much, much more. And it works on phones and tablets!