STOCKTON — If you live or work in Stockton, you are well aware of its reputation for violent crime. But in the past few days, even the cops have taken notice of an increasing number of incidents.Three unrelated homicides since Friday evening. Multiple serious assaults, including two against police officers who, fortunately, were not injured. And numerous illegal guns seized.Since Friday, Stockton police officers have responded to more than 3,500 calls for service, a [...]