MEXICO CITY — Authorities found the bodies of two Mexican marines wrapped in blood-stained sheets and dumped on a street in the Caribbean coast resort of Cancun on Wednesday.The bodies were found in downtown Cancun, relatively far from most of the resort's hotels. They had apparently been stabbed.The Mexican navy condemned the killings, saying the two marines were off duty when they were killed. The two servicemen were based on the nearby island of Isla Mujeres. 2018 Buick Regal Sportsback Top 10 Mini Split Air Conditioners Before 2017 Cancun was relatively calm, but . . .