Jack Dorsey days, Dorsey worked occasionally as a fashion model. By age fourteen, Dorsey had become interested in dispatch routing. Some of the open-source software he created in the area of dispatch logistics is still used by many taxi cab companies. Dorsey attended the University of Missouri–Rolla for two-plus years (1995–1997) before transferring to New York University, but he dropped out in 1999, one semester short of graduating. He first came up with the idea that he developed as Twitter while studying at New York University. While working on dispatching as a programmer, Dorsey moved to California. In 2000, Dorsey started his
Sidney Dorsey was found guilty of the murder of two adult men. Dorsey, as an Atlanta homicide detective, supervised the first search of Williams' home in 1981. Sidney Dorsey Sidney Dorsey (born February 23, 1940, in Atlanta, Georgia) served as sheriff of DeKalb County, Georgia from 1996 to 2000. Dorsey was the first African-American to serve as sheriff of DeKalb County, and was married to Atlanta city councilwoman Sherry Dorsey (1954–2006). When he was defeated in a 2000 runoff by challenger Derwin Brown, he arranged the murder of Brown. On July 10, 2002, Dorsey was convicted of ordering Brown's assassination in order