Jack Dorsey Chairman after Dick Costolo replaced Williams as the CEO. On June 10, 2015, Costolo announced that he was resigning as CEO of Twitter, effective July 1, 2015. Dorsey would assume the post of Interim CEO upon Costolo's departure. He was named permanent CEO of Twitter on October 5, 2015. On the day after the controversy about Twitter's new algorithms for tweets, Dorsey responded to the trend, saying it was only a hoax. In May 2016, Dorsey announced that Twitter would not count photos and links in the 140-character limit to free up more space for text. This move was an
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