Any Valid Discussion of Gun Control Must Address Epidemic of Police Unnecessarily Gunning Down "Suspects" and Bystanders* with Overwhelming Force

A homeless man with mental health issues, holding a knife, was confronted by 6 cops. When he failed to obey order to drop the knife(one man with a knife, 6 well armed cops) they ended the "standoff" by firing 46 bullets into his body. Where are Gun Control activists when the police murder those they are trained to protect via asymmetrical gun violence?
*9 Bystanders were wounded by errant bullets as NYPD shot and killed murder suspect.