From The New York Daily Post - Tuesday 21 February 2017, page 14
The headline in the newspaper is: Exclusive - Cop quits in grief - Undercover traumatized over killing innocent man
http://www.nydailynews.com/new-york/nypd-quits-grief-killing-innocent-man-article-1.2977727
NYPD undercover cop resigns as he struggles with grief from killing innocent man
An undercover cop who fatally shot a bystander during a gun-buy operation has resigned from the NYPD — too distraught to remain on the force, the Daily News has learned.
The former detective, who sources say suffers from posttraumatic stress disorder, left the NYPD in October with a tax-free disability pension. He now lives out of state after being a city cop for a decade.
....
He wasn’t charged in the 2015 shooting of 61-year-old Felix Kumi. And earlier this month, the NYPD ruled the shooting did not violate department guidelines.
“But the fact is he killed an innocent man,” said a police source familiar with the investigation. “That’s extremely difficult to deal with.”
....
Kumi, who was walking nearby, was hit twice by errant bullets in the Aug. 28, 2015, incident. A married father of two and devout Jehovah’s Witness, he died at Jacobi Medical Center in the Bronx the next day.
http://www.nydailynews.com/new-york/nypd-quits-grief-killing-innocent-man-article-1.2977727
See also:
http://www.nydailynews.com/new-york/nypd-chief-shot-bystander-mount-vernon-article-1.2343911
http://www.nydailynews.com/new-york/family-mt-vernon-bystander-killed-sting-sue-nyc-article-1.2757061
And also see:
https://www.jehovahs-witness.com/topic/5185901651034112/_post/6332375390748672