regards to the investigation, itself. >> reporter: we have a much clearer idea of who he was. we learned last night from the prosecutor in charge that in a series of raids carried out at his home, which we visits last night, a very tense situation, large police presence as the raids carried on. the woman who shared his life, his partner, is now in police custody. the question is at the heart of the investigation, george, whether he had a wider network, carried it out with the help of anyone else or simply a sympathizer of the islamic state. those are the questions that have yet to be answered for the time being. authorities are remaining tight lipped about what they know. >> thank you so much for the reporting. we'll stay in touch with you. >> more about the story, we are