More details are coming out about the man who killed 3 people and wounded dozens more yesterday, when he plowed his car into a crowd on London's Westminster Bridge and stabbed a police officer outside of British Parliament.
The killer is 52-year-old Khalid Masood, who was born in Britain, and had been on police radar for years.
The Daily Mail has revealed that Masood was born as Adrian Elms, in Kent, before he converted to Islam and changed his name.
His past convictions include grievous bodily harm, possession of offensive weapons, and public order offenses.
Masood's first conviction goes back to 1983 when he was busted for criminal damage. His most recent conviction happened in 2003 for possession of a knife.
Prime Minister Theresa May said Masood was known to authorities for his links to "violent extremism." He was investigated a few years ago, but was not seen as a major threat.
Authorities had no idea about the attack he would unleash.
It's believed Masood acted alone and was inspired by ISIS. Sky News reports he had a wife and three children, and was into bodybuilding