The reason of the massacre is unknown, but it is clear that the assassin suffered from some form of physiological disorder.  Rio’s police found in the shooter’s home a letter expressing his final wishes and the ways he wanted to be buried. The furniture and electrical appliances of his home were also destroyed.
This tragic event reminds us of similar massacres that have taken stage in the USA, such as VA Tech’s episode from 2005. Just like with past events, the reasons for such bizarre acts are hard to find. Unfortunately, they are becoming more common. We ask ourselves many questions. How could’ve this been avoided? What signs were there to stop this from happening? What could possibly take a young man to resort to such actions? Etc., etc. We all want to know the answers, but at this moment, we must pause and share our thoughts and heartfelt feelings with the victims and their families.