Investigators released new video of a shooting that happened at a Chick-fil-A in Boston last year.
Surveillance video shows the moment inside the Copley Square Chick-fil-A when gunfire broke out.
The crowd is seen scattering the moment shots were fired.
An off-duty police officer shot and killed a man who was threatening people with a knife.
The DA’s office said the attacker ignored commands to drop the knife.
Officials cleared the officer involved of any wrong-doing and say the use of force was necessary.
