Crusted paint is shown near the entrance of a building...

Crusted paint is shown near the entrance of a building where a man was allegedly shot by a police officer the night before at the Louis Pink Houses public housing complex, Friday, Nov. 21, 2014, in Brooklyn. Credit: AP / Julio Cortez

The Rev. Al Sharpton is calling for prosecutors to do a thorough investigation into the police killing of an unarmed man in a darkened stairwell at a public housing building in New York City.

Police have described a rookie officer's shooting of Akai Gurley in a Brooklyn staircase as an apparent accident. But Sharpton asked Saturday how that can be known "until there is a thorough investigation of all that happened."

He's also calling for the New York Police Department to improve its training and procedures. Sharpton was joined by members of Gurley's family.

Brooklyn District Attorney Kenneth Thompson has called Thursday's shooting "deeply troubling" and said it warrants "an immediate, fair and thorough investigation."

The NYPD has been working to give rookie officers more training and time with more senior officers.

Tributes in music and art ... Reading his works ... Inauguration Day  Credit: Newsday

Martin Luther King Jr. Day celebrated on Long Island ... Tributes in music and art ... Reading his works ... Inauguration Day 

Tributes in music and art ... Reading his works ... Inauguration Day  Credit: Newsday

Martin Luther King Jr. Day celebrated on Long Island ... Tributes in music and art ... Reading his works ... Inauguration Day 

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