As it turned out, this building was built with fake permissions and on an illegal land. The ones who were in charge did such a good job at getting rid of any evidence, that it only turned out a few months ago. People started to have strange symptoms. A doctor found the root of the problem. All of his patients attended the same dental hospital. He realised and proved that the dental hospital was built over a radioactive dump site. The radiation led to mutations in those who spent time in the building. As a first step, the building was locked down immediately. You have to go inside and measure the radiation.
November 28, 2015