Police: Bay Area serial killer ‘on a mission’ in slayings

STOCKTON  — A California serial killer seems to be “on a mission” throughout the fatal shooting of six men and the wounding of one woman dating back to last year.

Ballistics tests and some video evidence linked the crimes in Stockton and Oakland, about 70 miles (110 kilometers) apart, police said.

In this undated surveillance image released by the Stockton Police Department, a grainy still image of a “person of interest,” dressed all in black and wearing a black cap, who appeared in...