There are 10,000 gun crimes every year in the largest public housing authorities.
As of 2012, gun crime in south Manchester is now rare.
A steady rise in violent gun crime generally also became an issue of concern.
The effort led to a 30 percent increase in the prosecution of gun crimes statewide.
In California and elsewhere, such measures have substantially reduced gun crime.
Harehills also has problems with drug dealing and gun crime.
"I don't see it stopping every gun crime in America," he said.
Research analysts offered different opinions as to the program's success in reducing gun crime.
The area has been connected with some notable instances of gun crime in recent years.
The murder forced the police, media and consequently public to take a more focused stand on gun crime, which has become an important issue since.