In 1921 in Tulsa, Okla., hundreds of black residents of the prosperous Greenwood community were massacred by a mob of white townspeople. Madigan, a reporter with the Fort Worth Star Telegram, deftly locates the carnage in its proper political and cultural setting. Unlike previous accounts, this one shows how the riot touched individual lives by creating full-scale portraits of black and white citizens of oil-rich Tulsa. He fashions absorbing narratives from his interviews with survivors and from information uncovered by the 1997 Tulsa Race Riot Commission. Individual voices combine to relate the tragic chain of events, the madness and atmosphere of hate that compelled the white mob to torch almost every building in Greenwood. The earnest Sheriff McCullough worried about vigilantes running amok; the racist publisher Richard Lloyd Jones sought to sell newspapers by appealing to white bias; the defiant ex-slave Townsend Jackson refused to comply with Jim Crow laws; and the hapless Dick Rowland's arrest for accidentally bumping into a white girl triggers the slaughter. Madigan's skill at description, dialogue and pacing keeps the reader's interest at peak levels, and he does not gloss over brutal scenes of murder, arson and torture. Many other accounts have ignored the strong resistance of many Greenwood blacks against white marauders. Madigan draws implicit connections between one of the bloodiest racial atrocities in U.S. history and today's racial climate by concluding his timely history lesson with an update of the Tulsa commission findings and the city's move toward healing and reconciliation. 16 pages b&w photos not seen by PW. (Nov.)