They put forward no proof to support the speculation , but seized on a comment by chief prosecutor Michel Bourlet on Belgian television on Friday night that he would chase down everyone involved in the case " if I am allowed to " .
<response> They put forward no proof to support the speculation , but seized on a comment by chief prosecutor <person>Michel Bourlet</person> on <misc>Belgian</misc> television on Friday night that he would chase down everyone involved in the case " if I am allowed to " . </response>