
Earlier, senior intelligence sources have told the news website Politco that they believe the following men are, from left to right: Khalid and Brahim el-Bakraoui, Najim Laachraoui.
Several Belgian newspapers including HLM have already reported that Laachraoui, wearing a hat in this image, is believed to be the bombmaker. He did not detonate his bomb at the airport, fled the scene and is still at large.