Ahmad Abugharbieh, the younger brother of the man suspected of killing two University of South Florida doctoral students, told CBS News, "My entire family feels so much shame and guilt."

The following is the transcript of the interview with Olga Stefanishyna, Ukrainian Ambassador to the U.S., that aired on "Face the Nation with Margaret Brennan" on Nov. 23, 2025.

Officials investigating the shooting at the White House Correspondents' Dinner said they estimated the suspect was running at about 9 miles per hour when he sprinted through a checkpoint and…