That's so fukking sad.
Gotta remember those heroes who did their best to try to stop him. It reminds me of those other heroes who should be highlighted over and over again:
Adel Termos of Beirut, who heard a suicide blast, spotted a second bomber coming, and tackled him forcing the bomber to detonate, losing his life but saving hundreds in the process.
Aitazaz Hassan Bangash, a 14-year-old Pakistani schoolboy who heard a man asking for directions to his school, got suspicious when he tried to enter the school, chased him down and grabbed him, causing the bomber to detonate prematurely and saving the lives of dozens or hundreds of his fellow students.
Sayed Basam Pacha, an Afghani police officer, who spotted a man in an explosive vest approaching a checkpoint and ran up and bearhugged him. The blast killed 14 people including 8 officers, but the death toll would have been much higher if the man had reached the hotel that the checkpoint was set up in front of.