Osama bin Laden, hunted as the mastermind behind the worst terrorist attack on U.S. soil, has been killed, President Obama announced tonight.
The president called the killing of bin Laden the "most significant achievement to date" in the effort to defeat al Qaeda.
"Justice has been done," Obama said.
Bin Laden was located at a compound in Abbottabad, Pakistan, which was monitored and when the time was determined to be right, the president said, he authorized a "targeted operation."
"A small team of Americans carried out the operation," Obama said. "After a firefight, they killed Osama bin Laden and took custody of his body."
DNA testing confirmed that it was bin Laden, sources told ABC News.
