MEXICO CITY - The tortured body of the lead singer of a popular Mexican band was found along a highway Monday and another singer was shot to death, police said, the latest Mexican musicians killed in a wave of violence over the past year. Sergio Gomez, a singer with K-Paz de la Sierra, went missing Sunday after a concert in the Michoacan state capital of Morelia, according to the state attorney general's office. Gomez allegedly got into a car with three other people after the concert and headed for Puerto Vallarta, said Magdalena Guzman, a spokeswoman for the attorney general's...