The father of a Michigan school shooter was found guilty of involuntary manslaughter Thursday‚ a second conviction against the teen’s parents who were accused of failing to secure a gun at home and doing nothing to address acute signs of his mental turmoil. The jury verdict means James Crumbley has joined Jennifer Crumbley as a cause of the killing of four students at Oxford High School in 2021‚ even without pulling the trigger. They had separate trials as the first U.S. parents to be...