Gregg O. McCrary is a former FBI agent, who has been associated with the National Center for the Analysis of Violent Crime (NCAVC) since its inception in 1985. At the FBI Academy in Quantico, Virginia, McCrary constructed behavioral profiles of unknown offenders and provided threat analysis. McCrary is a contributing author to the acclaimed "Crime Classification Manual" published in 1992. Wikipedia
The definitive Wikipedia entry for Gregg McCrary. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Gregg_McCrary
