From a brilliant mathematician and an assistant professor at University of California, Theodore Kaczynski became the notorious American criminal—Unabomber—who was responsible for mail bombs that killed three people and injured 23 in eighteen years. He was eventually caught and sentenced to life imprisonment after his anti-technology essay sent to the media was recognised by his brother.
A Gulf War veteran, Timothy McVeigh made headlines after carrying out the Oklahoma City bombing that killed 168 people. He defended his actions saying that he wanted to inspire a revolution against what he considered a tyrannical government. The bombing remains the most malignant act of domestic terrorism in American history. He was executed by lethal injection in 2001.
A mobster and drug dealer most wanted by India, Dawood Ibrahim heads the organized crime syndicate popularluy known as D-Company. He was named No.3 on The World's 10 Most Wanted Fugitives by the FBI in 2011. He is wanted on the charges of terrorism, murder, targeted killing, extortion, and drug trafficking among other crimes.
10 Ramzi Yousef
Khalid Sheikh Mohammed is a Pakistani terrorist, who is believed to be “the principal architect of the 9/11 attacks.” A member of Osama bin Laden's al-Qaeda organization, he led al-Qaeda's propaganda operations for a few years. He is known by at least fifty pseudonyms. He was captured in 2003 and is currently detained at the Guantanamo Bay detention camp.
Called the ‘white widow’, British national Samantha Lewthwaite is one of the most wanted terrorists in the world. She has been linked to the Somali terrorist group Al Shabaab and was reportedly involved in the 2013 Nairobi Westgate shopping mall terror attack. She is the widow of one of the four suicide bombers who carried out the July 2005 London subway terror attacks.