29 years old — the man who allegedly mowed down pedestrians in the Tribeca neighborhood of New York City — entered the U.S. in 2010 from Uzbekistan under the Diversity Visa Lottery.
The Diversity Visa Lottery gives out 50,000 visas every year to foreign nationals from a multitude of countries, including those with known terrorist problems – such as Afghanistan, Algeria, Egypt, Iraq, Lebanon, Libya, Nigeria, Saudi Arabia, Somalia, Syria, Trinidad and Tobago, Venezuela, Yemen, and Uzbekistan.
Here's the form.