National Security Adviser Robert O’Brien says on “Face the Nation” that “it appears that this may be someone that was radicalized” Source

National Security Adviser O’Brien says that the FBI doesn’t know if the shooter was acting alone but Saudi Arabia has committed to cooperate with the investigation. Source

Turner Classic Movies host Ben Mankiewicz sits down with director and comedy writer Mel Brooks, now 93, who opens up about his politically-incorrect films like “Blazing Saddles” and “The Producers,” and whether they could be made today; and about his relationship with his soulmate, actress Anne Bancroft, with whom he was married for 41 years until her death in 2005. Source

From Time Magazine’s Person of the Year to the announcement of the Heisman Trophy winner, “Sunday Morning” takes a look at some notable events of the week ahead Source

Former New England Patriots tight end Rob Gronkowski disappointed countless fans back in March when he took early retirement from the NFL. But he has his reasons, plus some time to reflect, as he explains to correspondent Reena Ninan. Source

The Saudi student who fatally shot three sailors at a U.S. naval base in Florida hosted a dinner party earlier in the week where he and three others watched videos of mass shootings, a U.S. official told The Associated Press. CBS News’ David Begnaud reports. Source

The acclaimed flutist, broadcast journalist and author opens up about her diagnosis, and how music, writing and finding joy in life are helping her cope with a fading memory Source

At 17, the multiple Grammy-nominee says she is coming out of the “joyless” and “torturous” feeling that clinical depression and unwanted fame brought her Source

Singer-songwriter Billie Eilish (“Bad Guy”) demonstrates for CBS News’ Gayle King how she and her brother, Finneas O’Connell, improvise and conjure up songs at their home studio. Source

In this web extra singer-songwriter Billie Eilish talks with “CBS This Morning” co-host Gayle King about the kind of comfort she feels from covering up. Source