>> Get on the ground, get on the ground, get on the ground.>> This exclusive footage obtained by Reuters shows a police officer in California using a taser on a person with mental illness.>> Get on the ground.>> The man collapsed and died at the hospital seven days later.
>> Take a deep breath, buddy, take a deep breath.>> It's 1 of more than 1,000 cases Reuters has documented in the US, nearly all since the early 2000s, in which people died after police stunned them with tasers, typically in incidents that also involved other force. The national affairs team for Reuters uncovered how many of the casualties are among society's vulnerable.
>> We found hundreds of cases where the person who died had been suffering from some sort of mental health breakdown or some sort of neurological disorder like a seizure problem. And in a great number of those cases the police actually came because that person had called 911 for medical help, or because a loved one, a mother, a child had called 911 to get someone to come and help the person.
>> TASER, which recently changed its name to Axon Enterprise, insists its weapons are almost never to blame when there's a fatality. At an April forum at Stanford University, CEO Rick Smith said the stun guns had been responsible for around 20 deaths.>> I'm not telling you that tasers haven't killed people, but I think people tend to jump in cases where you can pretty strongly exclude it.
>> You need to stop resisting or you're gonna be tased.>> For years, the company has said the vast majority of victims died because of underlying health conditions, drug use, or other police force used along with the taser.>> They have argued that no one has died from the cardiac effects of the electric shock, what we found was that that wasn't true.
We found that in total there were about 150 autopsy reports where the coroners or the medical examiners identified the taser as the cause or the contributor to the death.>> He's unconscious.>> The deaths posing a challenge for US law enforcement at a time when protests over police killings have spurred cities to seek safer ways to control combative subjects.