“Those reports were false.
The guy had one handgun.
And the truck did the killing.”
So there were no high powered rifles and grenades?
“Initial reports that the truck was full of heavy weapons proved to be inaccurate as the weapons, including grenades later turned out to be fake.”
http://www.thelocal.fr/20160715/what-do-we-know-about-the-suspect-behind-nice