U.S. and Belgian intelligence sources are certain that Najim Laachraoui is dead.
He is the third man in the image from the closed circuit television picture at the Brussels airport.
That's where two of the three bombs went off, leaving more than 30 dead and hundreds injured in the European capital.
DNA evidence indicates, he built the bombs used in the Paris attacks and in Brussels.
Our correspondent Olly Barratt reports from Brussels:
IN: "it does ...
OUT: ...suicide bombing."
DUR: 25
Now Belgian and European authorities are continuing to search for a possible fourth suspect, as Olly Barratt reports from Brussels:
IN: "That does...
OUT: ...avoid capture."
DUR: 32
Officials are also reviewing intelligence that links the Paris attacks from last November to the Brussels attacks of this week....and as Olly Barratt reports, the search for co-conspirators and intelligence continues.
IN: "Those raids...
OUT: ...first place."
DUR: 19
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