Last night, Conan O’Brien had the unimaginably difficult task of breaking the news of Robin Williams’ death to his studio audience. Towards the end of his taping, a visibly shaken O’Brien tells his audience that “Robin Williams has passed away,” and you can hear a collective gasp. He calls the news “shocking,” “horrifying,” and “upsetting on every level,” which is a reminder on just how much Williams was loved. Andy Richter and guest Will Arnett, who’ve both worked with Williams, also take a moment to eulogize the actor. Watch below.