DALLAS — Watch our "Leaning ... explained to WFAA at the time why crews had such trouble bringing down the core of the building. "A cast-in-place concrete core," Taylor said.

Former DPD Chief Eddie Garcia told WFAA at the time of the incident that he was appalled and embarrassed by the actions of two Dallas Police Department officers.

Last weekend, the event was thrown into chaos after a shooting scare prompted a mass evacuation from the Kay Bailey Hutchinson Convention Center.

DALLAS — The NFL offseason is about to get ... and what they mean for the league. WFAA is providing a live stream starting at 11 a.m. on WFAA+.