A government chemist who researched Novichok nerve agents died in a 2022 incident ruled accidental, but colleagues and family say it doesn't add up.

The man accused of spraying Rep. Ilhan Omar (D-Minn.) with apple cider vinegar during a January town hall in her Minnesota district has reached a plea agreement with federal prosecutors, according to court filings.   Anthony Kazmierczak, 55, is expected to change his plea to guilty during a May 7 hearing in U.S. District Court in St. Paul,...