William F. Buckley, Jr., part of the bedrock foundation–some would say the cornerstone–of the modern American conservative movement died this morning. From the National Review’s Kathryn Jean Lopez:

I’m devastated to report that our dear friend, mentor, leader, and founder William F. Buckley Jr., died this morning in his study in Stamford, Connecticut.
He died while at work; if he had been given a choice on how to depart this world, I suspect that would have been exactly it. At home, still devoted to the war of ideas.
As you might expect, we’ll have much more to say here and in NR in the coming days and weeks and months. For now: Thank you, Bill. God bless you, now with your dear Pat. Our deepest condolences to Christopher and the rest of the Buckley family. And our fervent prayer that we continue to do WFB’s life’s work justice.