FAIRFIELD - Police say two men are behind bars for breaking into a Fairfield convenience store.Investigators say the men broke into the Friendly Mini-Mart on Black Rock Turnpike by disabling the power and smashing a window.Police say they were still aware of the break-in due to a back-up battery in the alarm system. According to police, the men jumped into a crawl space when they heard authorities.Authorities say the store's motion detector helped them locate the suspects.