NBC 7 San Diego has exclusively obtained surveillance video that may show the vandals that damaged the 9/11 memorial outside San Diego Fire Station 21.
The memorial included two stainless steel towers crafted by a colleague. One of the towers was removed from the base in what firefighters are calling an act of vandalism.
The surveillance camera facing south was positioned near the fire station in Pacific Beach.
In the video, a group of people appear to walk quickly from the direction of the fire station then scatter toward the boardwalk.
It's about 12:35 a.m. on Sept. 11, about this same time, firefighter Jeff Kaimer says he heard a crash outside the fire station, and looked out the second floor window.
"There was probably a female in her 20's right in front of the station here, looking at the memorial then she headed off to the beach,"Kaimer told NBC 7 San Diego."
The video is too grainy to make out the faces of the people.
The worker who provided the video did not want the business to be identified.
The worker also told NBC 7 San Diego that detectives have not asked for a copy of the video.
Meantime, Tara Tarrant, one of the creators of the memorial, spoke for the first time since learning about the vandalism. She is furious that anyone would vandalize such an important symbol of sacrifice.
"It's inexcusable behavior, I can't understand why someone would do something like that,"Tarrant said.
People often visit the monument that includes a three-foot, 250-pound section of an I-Beam from the Twin Towers. It was commissioned just last year and was a project funded by the firefighters of Station 21.