Source reveal exclusively to PerezHilton.com the exact details of the Kiefer Sutherland
headbutting debacle from last week!
The incident is being investigated by the NYPD and - if the LAPD gets involved and takes action against the actor for violating his DUI probation - the headbutting could delay production on the new season of 24
Our sources explains that both Kiefer and Brooke Shields
were "drunk as skunks" and partying hard the night