A construction contractor and two supervisors were acquitted of manslaughter and other charges in the 2007 blaze at the former Deutsche Bank building. The tower was heavily damaged in the Sept. 11 attacks and was being dismantled when it caught fire.
The 9/11 group says there's been no accountability for the firefighters' deaths. It says numerous violations were never reported.
It's also calling for the addition of building code amendments.
