( CNN ) -- A cold case in Alabama is heating up . State law enforcement officials announced the indictment of a suspect Wednesday in a series of sex crimes committed against three young Alabama girls between 1999 and 2004 . Attorney General Luther Strange credited the state 's unit that focuses on older , unsolved crimes for the arrest . `` This case is an example of the excellent work performed on a regular basis by the Cold Case Unit , '' Strange said in statement . A Calhoun County grand jury returned an indictment against former county resident Billy Wayne Cooper , 45 , on May 6. Cooper is charged with a number of counts of rape , sodomy , and sexual abuse . The victims were between 13 and 15 years old at the time of the crimes , which occurred in multiple locations , according to a press release from the attorney general 's office . `` Since beginning its work , the Cold Case Unit has provided hope and delivered justice for many victims whose cases had long gone unsolved , '' Strange said . The suspect is already serving time for convictions in other sexual attacks . Cooper is currently jailed at a detention facility in Fort Leavenworth , Kansas . He 's serving a sentence for convictions in multiple sex crimes at U.S. Army posts in Washington state and Germany . The Alabama charges carry a maximum penalty of life in prison . Vivian Kuo contributed to this story .
Alabama grand jury indicts suspect in old sex crimes case . The indictment says the man is accused of molesting a 14-year-old girl and raping another girl. Charges range from rape to sodomy and sexual abuse . Suspect was already jailed in Kansas for sex crimes .