A keyboardist for the southern rock band Lynyrd Skynyrd has died at his northeast Florida home. Keyboard player Billy Powell called 911 about 12:55 a.m. Wednesday saying he was having trouble breathing. Rescue crews performed CPR, but he was pronounced dead at 1:52 a.m., said Orange Park Police Lt. Mark Cornett. Powell, 56, who has a history of heart problems, missed a Tuesday appointment with his doctor for a cardiac evaluation. A heart attack is suspected. No autopsy will be performed because Powell's cardiologist will sign the death certificate, Cornett said. The Jacksonville-based band was formed in 1966 by a...