CHICAGO (AP) — Fearsome Chicago Bears middle linebacker Dick Butkus has died at 80. The team said in a statement that he died Thursday. Citing his family, the team said Butkus died in his sleep at his home in Malibu, California. Butkus was a Hall of Famer whose bone-rattling tackles made him one of the most intimidating players in NFL history. He was the quintessential modern linebacker, a disruptive force who roamed sideline to sideline and left a trail of broken opponents behind. Despite a short career in which he retired at 31, Butkus came to define his position. He later acted in movies, TV shows and commercials.