It impacted them negatively the shooting left 12 people dead and impact on the rest of Europe too this not being the first act of violence they have seen.
Now more people are moving to other places so there is less trade going on in Europe with surrounding countries that are also effected by the acts of violence.
Some move because they don't want to get involved in the violence or be around it,others move because of their religion Europe doesn't like Muslims living there,also a reason why some people move are because their immigrants.