DAKOTA CITY, Neb. (AP) _ A judge has approved a mental health treatment plan for a man who was acquitted by reason of insanity of killing his wife outside a northeast Nebraska police station. District Judge Paul Vaughan said Thursday that Bei Sheng Chen must remain in the Lincoln Regional Center for treatment until he no longer is a danger to himself or others. Vaughan ordered that an updated treatment plan be submitted by July 1, 2019, and he scheduled a review hearing for July 23, 2019. Authorities say Chen shot 33-year-old Mei Huang on Sept. 6 in the parking lot of the South Sioux City police station. She died hours later at a Sioux City, Iowa, hospital.