so what are the real solutions to police killings?

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5. disciplining and removing bad officers,

WNYC analyzed NYPD records and found 51,503 cases with resisting arrest charges since 2009. Just five percent of officers who made arrests during that period account for 40% of resisting arrest cases — and 15% account for almost 3/4 of such cases.

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There’s no way to check how often the NYPD disciplines individual cops, because disciplinary files in New York state are confidential. There are, however, public records that show that cops with numerous red flags have been allowed to stay on the street.

That’s certainly the case with Donald Sadowy. Court records show he was sued at least 10 times in little more than two years.

“If there are 10 lawsuits — lawsuits — there’s something wrong here and if this person has not been reprimanded and controlled there’s something wrong,” said Candace McCoy, a professor at the Graduate Center and John Jay College at the City University of New York.

http://www.wnyc.org/story/can-the-nypd-spot-the-abusive-cop/

Officer Pantaleo has one settled, and two or three pending cases of civil rights violations against him. Not including the one that will certainly come from the Garner family. When you have an officer routinely violating rights, they should be extensively retrained, or let go.

That's as good of a start as any.