I am sad to learn that David Mills, who was the undercover writer of Undercover Black Man, died last night in New Orleans. He was known as a writer for The Wire and ER. I am a big fan of The Wire. (I might have been a fan of ER, but I have never seen it.) But I also love the blog he wrote, which was playful and passionate -- and very personal, for an uncredited writer. His last post is dated Monday, March 29. He was only 48 when he collapsed suddenly of an aneurism, on the set of a new series named Treme, for which he was a writer.