Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
We've moved! Come join us at our new show page.
(CNN) – The grand jury's decision not to indict a New York City police officer for the death of an unarmed black man may have come down to a key piece of evidence – a cell phone video that showed what happened during Eric Garner's fatal encounter with police.
While much of the focus outside the grand jury room has been on the moment when an officer takes Garner down in a chokehold, the grand jury had to take something else into account – the actions of the other officers after Garner was already down.
At least one officer pushed Garner's head into the ground, while others moved in to pin him down.
That's important to keep in mind, because the medical examiner's report found that it was not just the chokehold that contributed to garner's death, but also "compression of chest and prone positioning during physical restraint by police."
Garner's pre-existing health conditions are also listed as contributing factors.
Officer Daniel Pantaleo, the man who put Garner in a chokehold, was the only officer brought before a grand jury. The other officers, including the ones who pinned Garner down, were granted immunity.
Another video from a second cell phone shows that even once Garner lost consciousness, he remained handcuffed on the ground. Officers hovered over him, seemingly unsure of what to do, and seven minutes pass by, with Garner clearly in distress, before he is taken away on a stretcher.
Many people are struck by the fact that Garner says he can't breathe nearly a dozen times while being restrained, but the officers don't seem to react. What are officers trained to do when a suspect seems to be in distress during an arrest?
Former NYPD detective and a former member of the civilian police complaint board Gil Alba discusses in the video above.