This 1950 file photo released by the State Office of Criminal Investigation in Germany, shows suspect Dr. Aribert Heim."Heim is the person we feel is the most important Nazi war criminal who can still be caught," said Efraim Zuroff, the Simon Wiesenthal Center's top Nazi hunter in a telephone interview. "We have good reason to believe he is still alive." (AP/Baden-Wuerttemberg)
Osama Bin Laden is wanted in connection with the August 7, 1998, bombings of the United States Embassies in Dar es Salaam, Tanzania, and Nairobi, Kenya. These attacks killed over 200 people. In addition, Bin Laden is the prime suspect behind the Sept. 11, 2001 terrorist attacks in the United States. (AP Photo)
John Boulachanis has a Canada-wide warrant out for his arrest for a first degree murder in 1997, though the body wasn't discovered until 2001. He allegedly executed and buried the victim with an accomplice, who was later arrested. Boulachanis was later seen in the U.S. but his whereabouts are unknown. (HO)
Jason Derek Brown is wanted for murder and armed robbery in Phoenix, Ariz. In November of 2004, Brown allegedly shot and killed an armored car guard outside an AMC movie theatre and then fled with the money. While cops haven't ruled out that Brown may have fled to someplace warm detectives think he could be in western Canada.
Jason David Browne (left) and Neon Daneyon Jemmott are wanted for first degree murder after a body was discovered in a stairwell of an apartment building on Sept. 9, 2005. (HO)