A Lodi police detective attending the trial fatally shot 28-year-old David Paradiso after he left the stand and began attacking San Joaquin County Superior Court Judge Cinda Fox, said Dave Conecny, a spokesman for the sheriff’s department.

Paradiso was being cross-examined at about 2 p.m. when his mother left her place in the audience and walked out of the courtroom upset, apparently at something her son said. Fox called a recess, and as jurors filed out, Paradiso left the stand and approached the judge from behind “with an unknown cutting instrument,” Conecny said.