One year ago today, on May 1, 2011, Osama bin Laden was killed by U.S. Navy SEALs in a daring raid on his compound near Islamabad, Pakistan. Through thousands of documents seized during the assault—many of them slated to be declassified later this week—we've learned a lot about the terror leader since his death.

He wanted to kill President Obama

According to the trove of documents uncovered by U.S. forces, bin Laden "regularly ordered his subordinates to plan new attacks, including assassinations of President Barack Obama and Gen. David Petraeus," NBC News reported.

According to the Washington Post, bin Laden wanted to kill Obama, in part, because he felt Vice President Joe Biden was "unprepared" to step in as commander in chief. Bin Laden's planned assassination of Obama involved hijacking Air Force One, the Post said.

"Obama is the head of infidelity and killing him automatically will make Biden take over the presidency," Bin Laden wrote in a message to one of his top lieutenants, the paper said. "Biden is totally unprepared for that post, which will lead the U.S. into a crisis." And all of this, despite an "increasingly limited cadre of operatives capable of carrying out such attacks."