What is the name os this movie?

One man wakes up with his son and wie and his son and wife leaves.The man tells them he`ll come after.That day there`s an explosion in the cafe where his son and wife went.They die.The men understands that someone killed them on purpose and tries to find who did it.At the end he finds the man and the woman who killed his family by looking at their hands because they made a sign which they did at the explosion.And he finds them,there`s a little acton and he kills them,what`s the name?