Claim: David Angell died in 2001.

David Lawrence Angell -LRB- April 10 , 1946September 11 , 2001 -RRB- was an American producer of sitcoms . Angell won multiple Emmy Awards as the creator and executive producer , along with Peter Casey and David Lee , of the comedy series Frasier . Angell and his wife Lynn both died heading home from their vacation in Cape Cod aboard American Airlines Flight 11 . This was the first plane to hit the World Trade Center during the September 11 attacks .