A 20-year-old Michigan man who admitted using social media to make violent threats against Jewish people was sentenced Monday to a year and a day in prison, far short of what prosecutors had recommended. A sentence exceeding a year makes someone eligible for good conduct credits and a shorter stay in federal custody. Seann Pietila, who has been locked up since June, was accused of using Instagram to spread neo-Nazi ideology, discuss plans to kill people and praise mass shooters. Pietila admitted that he told someone last summer about a plan to kill or injure Jewish people and wanted to...