Peter Shaffer, award-winning British playwright, dies at 90

By Piya Sinha-Roy LOS ANGELES (Reuters) - The award-winning British playwright Sir Peter Shaffer, best known for penning "Amadeus" and "Equus," died Monday in County Cork, Ireland, of pneumonia and age-related issues, his long-time agent said. Shaffer was surrounded by friends and family at the time of his death, just a few weeks after his 90th birthday, agent Dennis Aspland told Reuters. Born in Liverpool, and educated in London and Cambridge, Shaffer established his career with 1954's "The Sal