Bomb attack in Paris

On 6th, a package blew up in an office building in Paris. There was a bomb inside the package. The connection is not clear, but there was an office in the building where Paris president used to work. A secretary who opened the package died and at least 5 people injured. These days I often feel nobody knows when I die. There are lots of fears in this world. I sincerely wish the days comes when everybody can live happily and safely.