1) The truck kept driving even after the first few accidents. Instead of immediately breaking, he kept on driving. 2) Even if, like he said, his gas kept flowing even when taking his foot off, he could have pulled the hand brakes, which on trucks are powerful enough to bring to a halt the vehicle even when running at full. 3) Instead of driving forward on everyone, he could have slammed himself into a wall. therefore avoiding the loads of people on his way. 4) After going out of the truck which was finally stopped against a poll, he was caught on video taking a dustbin and throwing it at a woman coming to help him while shouting Allah Houakbar. This man has done absolutely everything intentionally.
Saudis warns U.S. that 9/11 responsibility law would erode investor confidence in America (Reuters)
from the article: Driver in suspected Nakba Day terror attack indicted for murder