Semion Mogilevich, a Ukrainian businessman, is charged with more than 40 counts of racketeering, wire fraud, mail fraud, and other economic crimes. He is alleged to have participated in a fraud in Philadelphia that bilked investors out of $150 million.

Eduardo Ravelo heads the Barrio Azteca gang in Juarez, Mexico, and is charged with a variety of crimes, including racketeering, money laundering, and possession with intent to distribute heroin and cocaine.

In 1998, Joe Luis Saenz allegedly shot and killed two rival gang members in Los Angeles for disrespecting one of the members of his gang. Authorities believe that was just the beginning of his killing spree.

Wanted for murder, conspiracy to murder and attack on a federal facility for the deadly 1998 bombings of the U.S. embassies in Tanzania and Kenya. Reward of up to $25 million. Bin Laden is thin, 6 feet 4 inches to 6 feet 6 inches tall, olive-skinned, with brown hair and brown eyes. He is left-handed and walks with a cane.

Wanted for allegedly killing his wife and two young children in Scottsdale, Arizona, in 2001. Fisher stands 6 feet tall, 190 pounds, with a medium build. He has blue eyes and brown hair and has surgical scars on his lower back. He has a noticeable gold crown on his upper left first bicuspid tooth. He may walk with an exaggerated erect posture and his chest pushed out due to a lower back injury. Fisher is known to chew tobacco heavily.

Wanted for his alleged involvement in the kidnapping and murder of a 5-year-old girl in Philadelphia in 2000. Flores is slim, 5 feet 4 inches tall, weighs 130 to 140 pounds, and has scars on his forehead and right cheek. He has brown eyes and a light complexion.

Wanted in connection with the 1983 armed robbery of $7 million from a security company in Connecticut. Genera is about 5 feet 6 inches tall, weighs 160 to 169 pounds, has a stocky build, a dark complexion, and green eyes. He has a one-inch scar and a mole on his right shoulder blade.

Wanted for his 1987 escape from Folsom State Prison in California, where he was serving a lengthy sentence for murder. Godwin is 6 feet tall, weighs 200 pounds, and has a medium build. He has black/salt and pepper hair, green eyes and is fluent in Spanish.

Wanted for murder and armed robbery for allegedly killing an armored car guard in in Phoenix in 2004. Brown is 5 feet 10 inches tall and weighs 170 to 180 pounds with a medium build.

Wanted for his role in numerous murders from the early 1970s to the mid-1980s in the Boston area. Bulger is 5 feet 7 inches to 5 feet 9 inches tall and weighs 150 to 160 pounds. he has blue eyes and white/silver hair. Bulger has been known to alter his appearance through the use of disguises.