Jewish institutions around the world are stepping up security after a<br />gunman killed four- 3 of them children- at a Jewish school in the<br />southwestern French city of Toulouse. Initial investigations suggest<br />that the gun used in the attack was the same gun used to murder two<br />French paratroopers last week, and was apparently used in a similar<br />way. Four days ago, two paratroopers were killed in nearby Montauban,<br />and another paratrooper was killed eight days ago in Toulouse. The<br />dead and injured were all of North African and Caribbean origin. The<br />fact that some of the soldiers were of North African descent led<br />French police to investigate the possibility that the perpetrators of<br />Monday's attack were former soldiers who are members of a Neo-Nazi<br />group. Another possibility being investigated is that a radical<br />Islamic group is responsible for the attack, yet as of Monday night no<br />organization has claimed responsibility.