Seattle – A 49-year-old member of the Lummi Nation pleaded guilty today in U.S. District Court in Seattle to assault resulting in serious bodily injury, announced U.S. Attorney Tessa M. Gorman. Jason Sieber Sr. was charged federally in February 2024, for the October 20, 2023, assault of his domestic partner. Sieber has been detained at the Federal Detention Center at SeaTac since his arrest in February 2024. He is scheduled for sentencing on December 20, 2024.
