bridge, postcards were made of the lynching, children witnessed the lynching, including a young woody guthrie. host: what did they do with postcards? guest: this serves the surface -- the purpose postcards serve, they were sent to friends and relatives around the country celebrating the fact that the offender had done these events. host: perry in atlanta, georgia. caller: mr. johnson, thank you for being with us. i have a question to ask, but first i need to say that i'm disappointed about the gentleman from texas talking about black homicide. you usually tell people to stick to the topic and that is not the topic. the topic is about tulsa. there's also the rosewood incident for people who don't know about that. imagine postcards, there were postcards at the tolson incident also. i want to know if there was an investigation done by the bureau of investigation before it became the fbi. i ask that because i watched the movie "killers of the flower mood -- flower moon." that happens around the same time as the total race rights. the bureau came out to investigate the killings of native americans