The arrests following the bombings of 11th March announced in Belgium, Germany and Spain did not disclose the identities of those arrested or the crimes with which they were charged. However, the Europeans praised the work of the Moroccan security services and Antonio Vitorino, the European Commissioner for Internal Affairs, stated that the large quantity of information Morocco supplied had been "insufficiently exploited."

Among those arrested was Saād Houssaļni, whom La Gazette du Maroc had described less than a month ago as "public enemy No.1 in Morocco." He is suspected of organizing the attacks of 16 May 2003, which were commanded by a Jordanian, Abou Moussa Al Zarkaoui. Saād Houssaļni, aged 34, is a veteran of the jihad. He acquired Afghan nationality after his exploits on the battlefield side by side with forces of the Taliban and was an expert on explosives. Later, he was a member of the military commission of the CIGM, an Islamic group fighting in Morocco, using the name of Mustapha, and the police failed to catch him.

Saād Houssaļni was born in March 1968 in Meknčs. He began to frequent Spain in 1994 with Moroccans enrolled in Islamic groups. He was in touch with two important movements of the period – the Spanish cells and the London Islamists of Abu Qatada. In the middle of April 1996, he left for Afghanistan to help the Taliban. In 2001, the US strikes and the defeat of his patrons forced Husseini to return to Europe, where he collaborated with leaders of Moroccan cells in Italy, London, Belgium, France and Spain.

The Moroccan police traced him back to Morocco in May 2002, where he prepared the events of black Friday, May 16th 2003. Then he began to play a major role in preparing plans for "projects" in Europe. According to our Spanish source "it is too early to be certain of his involvement in the bombings of 11 March 2004, but all his movements have been verified." He is undoubtedly one of the most dangerous members of the terrorist Islamic international – and now he is behind bars.