Dermot Mulroney. Dermot Mulroney (born October 31, 1963) is an American actor. Acting since the 1980s, he is known for his roles in the films Young Guns, Samantha, Where the Day Takes You, My Best Friend's Wedding, The Last Outlaw, About Schmidt, and August: Osage County. Mulroney played the main antagonist of NBC's Crisis, Francis Gibson.
The 1991 videotaped beating of Rodney King by L.A.P.D. officers, and subsequent riots triggered by the acquittal of the officers involved, rocked L.A. and the nation. The events brought to the forefront concerns about racism and police brutality within the L.A.P.D.
One of the four officers charged in the beating of King had previously been disciplined for excessive use of force. Officer Theodore J. Briseno was suspended for 66 days in 1987 after he beat a handcuffed man.