| Five days after a Dutch-Moroccan man killed the outspoken filmmaker Theo van Gogh in broad daylight here, intelligence officials say they are investigating a possible international dimension to what many people see as the country's first Islamic terrorist attack. While intelligence officials caution that there is no evidence to prove that the suspect in Mr. van Gogh's killing was part of a larger organization, they have focused on his past association with people who are suspected of plotting bombings and may have links to terrorist networks abroad. "There are links to the transnational Al Qaeda network," said Vincent van Steen, a Dutch intelligence official. "But it is hard to say how extensive they are." |