they only discovered he was back in europe when his remains were found among all the carnage in paris. when asked about the reaction to the deaths of abaaoud, the federal prosecutor's office here said that they don't really have time to rest on any kind of whirls. they're busy right now searching for another key suspect, that fugitive, salah abdeslam, who has been missing sin the paris attacks, whose car was found here in brussels after the paris attacks, after a brief questioning period by french police when he escaped the dragnet there. he's still very much wanted. authorities here very worried what he may be capable of, as long as he is still a fugitive. john? >> that's right. he very much still on the run right now. as we see, probably the most wanted man in europe. ivan watson in belgium, thank you so much. want to bring in cnn terror analyst paul cruickshank.