O'Neill was scheduled to reveal himself in a two-part documentary by Fox News this month. O'Neill told the Washington Post he decided to reveal his identity sooner after it was disclosed on a website ran by former Navy SEALs.
The Washington Post reports further on O'Neill's reasons for revealing his role in the raid:
O’Neill said he confirmed his decision to go public after a private encounter with relatives of victims of the Sept. 11, 2001, attack on New York’s World Trade Center. During an emotional meeting with victims’ family members before the recent opening of the National September 11 Memorial Museum, the former SEAL decided spontaneously to talk about how bin Laden met his end.
“The families told me it helped bring them some closure,” said O’Neill, whose identity as the shooter was independently corroborated for The Post by two SEAL team members.
Earlier this week, the Daily Mail spoke with O'Neill's father, Tom O'Neill, who said the family is not worried about Robert revealing himself as the shooter.
Read more at the Washington Post.