The New York City Medical Examiner is ruling Eric Garner's death a homicide.
The office reports compression of the neck and chest was one of the contributing factors that led to the Staten Island man's death.
Acute and chronic bronchial asthma, obesity, and hypertensive cardiovascular disease also played a role.
Video of the July 17 incident shows police putting the 43-year-old into a chokehold on a Staten Island street where he was suspected of selling untaxed cigarettes. He can be heard saying "I can't breathe."
Garner's death has sparked outrage throughout the city and led to a roundtable discussion yesterday with The Reverend Al Sharpton, Police Commissioner Bill Bratton and Mayor Bill de Blasio on improving police and community relations.
The main officers and EMT's involved have all been reassigned as the probe continues.