Actually, the "number" was 5 and the 5 Jersey City celebrants turned out to be Israelis.
Where did you get that tripe from?
It was in all the papers at the time. A woman observed the celebrants happily taking pictures while standing on top of the moving van and reported them to the Jersey City police. She took down the license plate number as the white van left and the police put out an APB for the van. It was found in Fort Lee and the occupants were arrested and the FBI was called in. Their film was developed in the Newark office and indeed showed the Israelis quite happy about the towers on fire. That was what was what was cited by Trump in the WaPo article except it didn't come out that the 5 men were Israelis until the police report and FBI report were partially declassified.
Here is the van they were "tailgating" on:
"It was all in the papers" your say. You can do better than that.
How is that different from Trump saying it was heavily covered on TV?
5 Young Israelis, Caught in Net of Suspicion
As their lawyer tells it, when the five young men were picked up by F.B.I. agents in midday on Sept. 11, they had a box cutter with them. One man carried $4,000 in cash, another had two passports.
In short, there probably were good reasons to be suspicious of the men who became the subjects of widespread news coverage.
What those early news accounts missed, however, was that all five of the men were Israeli Jews, and that if they had box cutters, it was because at least four of them and possibly all five worked for Urban Moving Systems, a household moving company in New York and New Jersey.