Former Prince George's County Executive Jack B. Johnson, center, exits the U.S. Federal Courthouse, in Greenbelt, Md., Tuesday, May 17, 2011. Johnson pleaded guilty to one count of extortion and one count of witness tampering. (Drew Angerer/The Washington Times)

Photo by: Drew Angerer

Former Prince George's County Executive Jack B. Johnson, center, exits the U.S. Federal Courthouse, in Greenbelt, Md., Tuesday, May 17, 2011. Johnson pleaded guilty to one count of extortion and one count of witness tampering. (Drew Angerer/The Washington Times)