Cell phone video was posted late Wednesday night to the video sharing site LiveLeak.com following the mass shooting at the San Bernardino Inland Regional Center building.
In the video you can hear a San Bernardino officer say, "I'll take a bullet before you do....."
The shooting that claimed the lives of 14 people and injured more than 20 others happened at about 11:15 a.m. Wednesday outside the building that serves more than 31,000 individuals with developmental disabilities in San Bernardino and Riverside counties.
WATCH VIDEO FROM INSIDE INLAND REGIONAL CENTER BUILDING
Witnesses said several people locked themselves in their offices, desperately waiting to be rescued by police, after gunfire erupted at the Inland Regional Center, which serves people with developmental disabilities.
The attack took place in a rented-out conference area where the San Bernardino County Department of Public Health was holding a banquet, said Maybeth Feild, president and CEO of the center. She said the building houses at least 25 employees as well as a library and conference center.