Navy SEAL who killed Osama Bin Laden shares his one big regret 15 years later

The Navy SEAL who pulled the trigger on Osama bin Laden and killed the terrorist behind the September 11 attacks says that 15 years later, one decision has continued to haunt him.

On September 11, 2001, four passenger planes were hijacked in the eastern United States and used as weapons.

Two of those planes were flown straight into the towers of the World Trade Center in New York, another tore into the Pentagon in Arlington, Virginia, and a fourth – flight 93 – never reached its target after passengers fought back, crashing instead into a field in rural Pennsylvania.

Nearly 3,000 people were killed and thousands more were injured. Investigators later tied all 19 hijackers to al Qaeda, and Osama bin Laden admitted he was behind the attacks, the FBI reports.

In the years that followed, U.S. intelligence tracked bin Laden to a compound in Abbottabad, Pakistan, where a special operations unit carried out a raid on May 2, 2011, under orders from President Barack Obama.