So they KNEW about it for TEN YEARS. And it was an artist studio. That means that the public went in and viewed the ART at times. I am certain the authorities could have gone inside if they really wanted to. They dragged their feet because they didn't want to displace all of those artists, imo. They said an inspector went and could not gain entrance. Well FFS, WAIT until you see someone coming or going. There were dozens who lived and worked there. Just sit undercover in a car and wait. A child could figure that out. If there was someone inside that owed the city money, I bet they could figure out how to 'gain access.'